Liu Xiang's height was measured in the photo as 4.7 cm. The scale of this photo is 1:40. What is Liu Xiang's actual height in meters?
在照片上量得刘翔的身高是4.7厘米，这张照片的比例尺是1：40，刘翔的实际身高是多少米．
<gadget id="calculator">1 / 40</gadget>
<output>1/40 = around 0.025</output>

<gadget id="calculator">4.7 / (1/40)</gadget>
<output>188</output>

<gadget id="calculator">188 / 100</gadget>
<output>47/25 = around 1.88</output>

<result>47/25 = around 1.88</result>