The diameter of the front wheel of a children's bicycle is 35 cm, and the diameter of the rear wheel is 28 cm. After Xiao Ming rides the children's bicycle for a certain distance, the front wheel of the bicycle turns 32 times in total. So how many turns did the bike's rear wheel make in the process?
一辆儿童自行车的前轮直径是35厘米，后轮直径是28厘米，小明骑着这辆儿童自行车行驶了一段路程后，这辆自行车的前轮共转动了32圈．那么在这个过程中这辆自行车的后轮转动了多少圈？
<gadget id="calculator">3.14 * 35 * 32</gadget>
<output>3_516.8</output>

<gadget id="calculator">3.14 * 28</gadget>
<output>87.92</output>

<gadget id="calculator">3_516.8 / 87.92</gadget>
<output>40</output>

<result>40</result>