<PRE><B>Question 717890</B>
What scale factor was used to build a 55 ft wide billboard from a 25 in. wide model? 
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Ans: (55*12)in/25in = (11/5)12 = 132/5 = 26 2/5 = 26.4

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The billboard is 26 2/5 or 132/5 times the model
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Scale factor: 26 2/5 or 26.4 to 1
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Cheers,
Stan H.</PRE>