On a map of China with a scale of 1:10000000, the length of the Qinghai-Tibet Railway is measured to be 19.6 cm. What is the actual length of the Qinghai-Tibet Railway in kilometers?
在一幅比例尺为1：10000000的中国地图上，量得青藏铁路长19.6厘米．青藏铁路的实际长度是多少千米？
<gadget id="calculator">1 / 10_000_000</gadget>
<output>1/10_000_000 = around 0</output>

<gadget id="calculator">19.6 / (1/10_000_000) / 100_000</gadget>
<output>1_960</output>

<result>1_960</result>