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Finding the Fourth Proportional to 28,062.48, 42,084.56 and 9,337.48

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Solution

The fourth proportional to 28,062.48, 42,084.56 and 9,337.48 is: 14,003.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,062.48 : 42,084.56 = 9,337.48 : x
  2. Step 2: Convert to fraction form
    28,062.48/42,084.56 = 9,337.48/x
  3. Step 3: Cross multiply
    28,062.48x = 42,084.56 × 9,337.48
  4. Step 4: Simplify right side
    28,062.48x = 392,963,737.31
  5. Step 5: Solve for x
    x = 392,963,737.31/28,062.48
  6. Step 6: Final answer
    x = 14,003.17

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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.