A bicycle travels 15.5 kilometers per hour, and the speed of the motorcycle is 4.5 times the speed of the bicycle. How many kilometers per hour does the motorcycle travel?
一辆自行车每小时行15.5千米，摩托车的速度是自行车速度的4.5倍，摩托车每小时行驶多少千米？
<gadget id="calculator">15.5 * 4.5</gadget>
<output>69.75</output>

<result>69.75</result>