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Finding the Fourth Proportional to 70,545.96, 97,353.16 and 38,714.78

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Solution

The fourth proportional to 70,545.96, 97,353.16 and 38,714.78 is: 53,426.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,545.96 : 97,353.16 = 38,714.78 : x
  2. Step 2: Convert to fraction form
    70,545.96/97,353.16 = 38,714.78/x
  3. Step 3: Cross multiply
    70,545.96x = 97,353.16 × 38,714.78
  4. Step 4: Simplify right side
    70,545.96x = 3,769,006,318.30
  5. Step 5: Solve for x
    x = 3,769,006,318.30/70,545.96
  6. Step 6: Final answer
    x = 53,426.25

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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.