Question 714725
it is proportional; so, {{{5in:100mil=x:2500mil}}}

{{{5in*2500mil=100xmil}}}

{{{5in*2500mil/100mil=x}}}

{{{5in*cross(2500)25cross(mil)/cross(100)cross(mil)=x}}}

{{{5*25in=x}}}

{{{125in=x}}}