Use a loom to weave 22.4 meters in 4 hours. If you add another 3 hours, how many meters can we weave in total?
用一台织布机织布，4小时织布22.4米，如果再增加3小时，一共可以织布多少米？
<gadget id="calculator">22.4 / 4</gadget>
<output>5.6</output>

<gadget id="calculator">4 + 3</gadget>
<output>7</output>

<gadget id="calculator">5.6 * 7</gadget>
<output>39.2</output>

<result>39.2</result>