\[\begin{align*} \dfrac{\text{Number of pounds of hypochlorite}}{\text{Number of gallons of water}}&=\dfrac{\text{Number of pounds of hypochlorite}}{\text{Number of gallons of water}} \\[4pt] \dfrac{4...Number of pounds of hypochloriteNumber of gallons of water=Number of pounds of hypochloriteNumber of gallons of water4.8lbs70gal=xlbs20gal(4.8lbs)(20gal)=(70gal)(xlbs)96=70x9670=xx=1.4lbs