Question 305690
{{{a}}}({{{10}}},{{{24}}},{{{X}}})=({{{Y}}},{{{36}}},{{{39}}})
where {{{a}}} is the scaling factor.
From the middle pair,
{{{a(24)=36}}}
{{{a=36/24=3/2}}}
Then
{{{10a=Y}}}
{{{10(3/2)=Y}}}
{{{Y=15}}}
and
{{{aX=39}}}
{{{(3/2)X=39}}}
{{{X=39(2/3)}}}
{{{X=26}}}
The two triangles are (10,24,26) and (15,36,39)