The average of 4 consecutive natural numbers is 12.5, then what is the largest number among these 4 consecutive natural numbers.
4个连续自然数的平均数是12.5，那么这4个连续自然数中最大的数是多少．
<gadget id="calculator">12.5 * 4</gadget>
<output>50</output>

<gadget id="calculator">50 + 1 + 2 + 3</gadget>
<output>56</output>

<gadget id="calculator">56 / 4</gadget>
<output>14</output>

<result>14</result>