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Finding the Fourth Proportional to 62,802.48, 94,240.20 and 20,713.20

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Solution

The fourth proportional to 62,802.48, 94,240.20 and 20,713.20 is: 31,081.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,802.48 : 94,240.20 = 20,713.20 : x
  2. Step 2: Convert to fraction form
    62,802.48/94,240.20 = 20,713.20/x
  3. Step 3: Cross multiply
    62,802.48x = 94,240.20 × 20,713.20
  4. Step 4: Simplify right side
    62,802.48x = 1,952,016,110.64
  5. Step 5: Solve for x
    x = 1,952,016,110.64/62,802.48
  6. Step 6: Final answer
    x = 31,081.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.