Question 709760
There are 4 quarts in a gallon, so in 4 gallons,
there are {{{ 4*4 = 16 }}} quarts 
-----------
I can set up the ratio:
{{{ 48 / 16 = x / 15 }}}
Multiply both sides by {{{ 15*16 }}}
{{{ 48*15 = 16x }}}
{{{ 720 = 16x }}}
{{{ x = 720/16 }}}
{{{ x = 45 }}}
There are 45 ounces of bleach in 15 quarts of solution