Hi @Anonymous and welcome to the Autodesk Community!
I assume that you want your entire drawing scaled properly and not just the one wall.
Turn On, Thaw, and unlock all your layers.
Type SCALE and then select ALL. A base point of 0,0 is pretty standard and then put in the scale factor of 51.41388
Please select the Accept as Solution button if my post fully solves your issue or answers your question.
John Vellek
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