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Finding the Fourth Proportional to 70,565.86, 97,380.30 and 38,732.86

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Solution

The fourth proportional to 70,565.86, 97,380.30 and 38,732.86 is: 53,451.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,565.86 : 97,380.30 = 38,732.86 : x
  2. Step 2: Convert to fraction form
    70,565.86/97,380.30 = 38,732.86/x
  3. Step 3: Cross multiply
    70,565.86x = 97,380.30 × 38,732.86
  4. Step 4: Simplify right side
    70,565.86x = 3,771,817,526.66
  5. Step 5: Solve for x
    x = 3,771,817,526.66/70,565.86
  6. Step 6: Final answer
    x = 53,451.02

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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.