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Finding the Fourth Proportional to 64,487.70, 96,699.15 and 29,387.70

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Solution

The fourth proportional to 64,487.70, 96,699.15 and 29,387.70 is: 44,066.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,487.70 : 96,699.15 = 29,387.70 : x
  2. Step 2: Convert to fraction form
    64,487.70/96,699.15 = 29,387.70/x
  3. Step 3: Cross multiply
    64,487.70x = 96,699.15 × 29,387.70
  4. Step 4: Simplify right side
    64,487.70x = 2,841,765,610.46
  5. Step 5: Solve for x
    x = 2,841,765,610.46/64,487.70
  6. Step 6: Final answer
    x = 44,066.78

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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.