Posted by **Suzanne** on Saturday, April 23, 2011 at 4:56pm.

Which proportion can you use to find the width of a full size railroad track? of 1 millimeter for every 87 millimeters in a full size train. The model railroad cars run on a track that is 16.5 mm wide.

f) 1/87 = x/16.5

g) 1/87 = 16.5/x

h) 1/x= 87/16.5

j) 16.5/87 = x/1

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