A trapezoidal paddy field is 50 meters long at the top, 82 meters long at the bottom, and 30 meters high. It can harvest 5,300 kilograms of rice per hectare. How many kilograms of rice can be harvested in this paddy field?
一块梯形稻田上底长50米，下底长是82米，高是30米，每公顷收水稻5300千克，这块稻田可收水稻多少千克？
<gadget id="calculator">50 + 82</gadget>
<output>132</output>

<gadget id="calculator">1 * 10_000</gadget>
<output>10_000</output>

<gadget id="calculator">30 / 2 / 10_000</gadget>
<output>3/2_000 = around 0.0015</output>

<gadget id="calculator">5_300 * 132 * (3/2_000)</gadget>
<output>5_247/5 = around 1_049.4</output>

<result>5_247/5 = around 1_049.4</result>