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Finding the Fourth Proportional to 70,734.38, 97,614.10 and 38,469.30

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Solution

The fourth proportional to 70,734.38, 97,614.10 and 38,469.30 is: 53,087.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,734.38 : 97,614.10 = 38,469.30 : x
  2. Step 2: Convert to fraction form
    70,734.38/97,614.10 = 38,469.30/x
  3. Step 3: Cross multiply
    70,734.38x = 97,614.10 × 38,469.30
  4. Step 4: Simplify right side
    70,734.38x = 3,755,146,000.96
  5. Step 5: Solve for x
    x = 3,755,146,000.96/70,734.38
  6. Step 6: Final answer
    x = 53,087.99

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1.5x scale

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.