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Finding the Fourth Proportional to 62,384.88, 93,578.13 and 20,831.88

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Solution

The fourth proportional to 62,384.88, 93,578.13 and 20,831.88 is: 31,248.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,384.88 : 93,578.13 = 20,831.88 : x
  2. Step 2: Convert to fraction form
    62,384.88/93,578.13 = 20,831.88/x
  3. Step 3: Cross multiply
    62,384.88x = 93,578.13 × 20,831.88
  4. Step 4: Simplify right side
    62,384.88x = 1,949,408,374.78
  5. Step 5: Solve for x
    x = 1,949,408,374.78/62,384.88
  6. Step 6: Final answer
    x = 31,248.09

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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.