To find the cost per acre, divide the total cost by the number of acres: $685,000 / 60 acres = $11,416.67 per acre.
To find the cost for 50 acres, multiply the cost per acre by the number of acres: $11,416.67/acre * 50 acres = $558,333.5
So, the cost per acre is $11,417 and the cost for 50 acres would be $558,334.