Solution:
Given that,
A cleaning product is to be mixed at a proportion of 1 part cleaner to 5 parts water
Therefore,
cleaner : water = 1 : 5
Let the part of cleaner needed be 1x
Let the part of water needed be 5x
How much water is needed for 12 ounces of cleaner
1x = 12
x = 12
Therefore,
Water needed = 5x = 5(12) = 60
Thus 60 ounce of water is needed for 12 ounces of cleaner