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Finding the Fourth Proportional to 62,387.28, 93,645.72 and 36,143.28

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Solution

The fourth proportional to 62,387.28, 93,645.72 and 36,143.28 is: 54,252.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,387.28 : 93,645.72 = 36,143.28 : x
  2. Step 2: Convert to fraction form
    62,387.28/93,645.72 = 36,143.28/x
  3. Step 3: Cross multiply
    62,387.28x = 93,645.72 × 36,143.28
  4. Step 4: Simplify right side
    62,387.28x = 3,384,663,478.76
  5. Step 5: Solve for x
    x = 3,384,663,478.76/62,387.28
  6. Step 6: Final answer
    x = 54,252.46

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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.