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Finding the Fourth Proportional to 75,882.30, 113,892.30 and 38,468.40

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Solution

The fourth proportional to 75,882.30, 113,892.30 and 38,468.40 is: 57,737.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,882.30 : 113,892.30 = 38,468.40 : x
  2. Step 2: Convert to fraction form
    75,882.30/113,892.30 = 38,468.40/x
  3. Step 3: Cross multiply
    75,882.30x = 113,892.30 × 38,468.40
  4. Step 4: Simplify right side
    75,882.30x = 4,381,254,553.32
  5. Step 5: Solve for x
    x = 4,381,254,553.32/75,882.30
  6. Step 6: Final answer
    x = 57,737.50

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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.