Using PHP variable inside do_shortcode() for WordPress

first - sorry about the title, not sure exactly how to name what I need.

Here's what I'd like to do:

1) Get the post ID 2) Get the Custom Field from said post id 3) Display shortcode with the custom field's value

Here's what I have:

<?php
global $wp_query;
$postid = $wp_query->post->ID;
echo get_post_meta($postid, 'id-del-instructor', true);
wp_reset_query();
?>
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With this, I am able to get and display the shortcode's value - although I need to store it for later use rather than display it.

Then, I found this to display the shortcode with PHP:

<?php echo do_shortcode("[awsmteam id="XXX"]"); ?>
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I have tried combining these two codes but every time it breaks my site.

Basically, where it says XXX, I need the value from the shortcode. It's probably something simple to achieve but I have been looping around and can't get my head around it.

Help? :) Thanks so much!

RESOLVED with this code - thanks @Alon Eitan:

<?php
    global $wp_query;
    $postid = $wp_query->post->ID;
    $meta =  get_post_meta($postid, 'id-del-instructor', true);
    wp_reset_query();
    echo do_shortcode('[awsmteam id="' . $meta . '"]');
?>
Copy code

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