A company is looking to enclose a square garden and a rectangular playground. The garden has a side length of 20 meters, and the playground has a length of 30 meters and a width of 10 meters. If the cost of fencing is $15 per meter, calculate the total cost to enclose both areas. Also, if the cost of fencing increases by 20%, what will be the new total cost to enclose both areas? Let's think step by step and output the final answer within \boxed{}.
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