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Finding the Fourth Proportional to 62,127.76, 85,761 and 43,275.28

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Solution

The fourth proportional to 62,127.76, 85,761 and 43,275.28 is: 59,737.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,127.76 : 85,761 = 43,275.28 : x
  2. Step 2: Convert to fraction form
    62,127.76/85,761 = 43,275.28/x
  3. Step 3: Cross multiply
    62,127.76x = 85,761 × 43,275.28
  4. Step 4: Simplify right side
    62,127.76x = 3,711,331,288.08
  5. Step 5: Solve for x
    x = 3,711,331,288.08/62,127.76
  6. Step 6: Final answer
    x = 59,737.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.