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Finding the Fourth Proportional to 22,411.28, 33,591.64 and 9,929.66

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Solution

The fourth proportional to 22,411.28, 33,591.64 and 9,929.66 is: 14,883.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,411.28 : 33,591.64 = 9,929.66 : x
  2. Step 2: Convert to fraction form
    22,411.28/33,591.64 = 9,929.66/x
  3. Step 3: Cross multiply
    22,411.28x = 33,591.64 × 9,929.66
  4. Step 4: Simplify right side
    22,411.28x = 333,553,645.38
  5. Step 5: Solve for x
    x = 333,553,645.38/22,411.28
  6. Step 6: Final answer
    x = 14,883.29

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1.5x scale

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.