document.write( "Question 587451: Find the height of a tree that casts a 90 foot shadow, if an adjacent 2 1/2 foot high fence post casts a 2 foot shadow. \n" ); document.write( "
Algebra.Com's Answer #374131 by stanbon(75887)\"\" \"About 
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Find the height of a tree that casts a 90 foot shadow, if an adjacent 2 1/2 foot high fence post casts a 2 foot shadow.
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\n" ); document.write( "Proportion:
\n" ); document.write( "x/90 = (2 1/2)/2\r
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\n" ); document.write( "x/90 = 5/4
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\n" ); document.write( "\n" ); document.write( "x = 90(5/4)
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\n" ); document.write( "x = 450/4
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\n" ); document.write( "x = 112.5 ft.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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