[tex]2\to3\qquad/2\cdot1.5=3/\\\\4\to6\qquad/4\cdot1.5=6/\\\\/6\cdot1.5=9/\qquad6\to9\\\\/8\cdot1.5=12/\qquad8\to12\\\\\begin{array}{|c|c|}Boys&Girls\\2&3\\4&6\\6&9\\8&12\\\end{array}\\\\[/tex]
[tex]\text{Or you can use the proportion:}\\\\\dfrac{3}{2}=\dfrac{?}{6}\qquad\text{cross multiply}\\\\2?=18\qquad\text{divide both sides by 2}\\\\?=9\\-----------\\\\\dfrac{3}{2}=\dfrac{?}{8}\qquad\text{cross multiply}\\\\2?=24\qquad\text{divide both sides by 2}\\\\?=12[/tex]
