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Finding the Fourth Proportional to 83,592, 125,377.92 and 21,263.04

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Solution

The fourth proportional to 83,592, 125,377.92 and 21,263.04 is: 31,892.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,592 : 125,377.92 = 21,263.04 : x
  2. Step 2: Convert to fraction form
    83,592/125,377.92 = 21,263.04/x
  3. Step 3: Cross multiply
    83,592x = 125,377.92 × 21,263.04
  4. Step 4: Simplify right side
    83,592x = 2,665,915,728.08
  5. Step 5: Solve for x
    x = 2,665,915,728.08/83,592
  6. Step 6: Final answer
    x = 31,892.00

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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.