Question 118263

{{{90-foot : x = 10-foot : 7-foot}}}


{{{x *10-foot =90-foot*7-foot}}}………divide by {{{10-foot}}}


{{{x *10-foot/ 10-foot =(90-foot*7-foot)/ 10-foot }}}………	


{{{x*cross(10-foot)/ cross(10-foot) =(9*cross(10-foot)*7-foot)/cross(10-foot)}}}………	


{{{x =9*7-foot}}}


{{{x =63-foot}}}....lakefront hotel casts a {{{63-foot}}} showdow on the water


Check:

{{{90-foot :  x-foot = 10-foot : 7-foot}}}


{{{90-foot :  63-foot = 10-foot : 7-foot}}}	

{{{1.4285714285714285714285714285714=1.4285714285714285714285714285714}}}

{{{1.43=1.43}}}