Question 87614
    Assuming that on a blueprint 1/4 inch equals 12 inches, the actual length in feet of a steel bar represented on the blueprint by a line 3 3/8 inches long is.....
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x/[3 3/8] = (1/4)/(12)

x/[27/8] = 1/48

x = (27/8)*(1/48)

x = 27/384

x = 9/128 inches long or 0.0703125 inches long 

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Cheers,
Stan H.