There is a conical grain mound with a bottom circumference of 18.84 meters and a height of 60 decimeters. It is known that each cubic meter of rice weighs 0.63 tons, and the yield of rice is 70%. How many tons of rice can this grain heap produce in total?
有一个圆锥形谷堆，底面周长18.84米，高60分米，已知每立方米的稻谷重0.63吨，稻谷的出米率是70%，这个谷堆一共可以出米多少吨？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">18.84 / 3.14 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">60 / 10</gadget>
<output>6</output>

<gadget id="calculator">70 / 100</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">(1/3) * 3.14 * 9 * 6 * 0.63 * (7/10)</gadget>
<output>24.92532</output>

<result>24.92532</result>