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Finding the Fourth Proportional to 64,115.68, 96,169.92 and 17,365.12

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Solution

The fourth proportional to 64,115.68, 96,169.92 and 17,365.12 is: 26,046.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,115.68 : 96,169.92 = 17,365.12 : x
  2. Step 2: Convert to fraction form
    64,115.68/96,169.92 = 17,365.12/x
  3. Step 3: Cross multiply
    64,115.68x = 96,169.92 × 17,365.12
  4. Step 4: Simplify right side
    64,115.68x = 1,670,002,201.19
  5. Step 5: Solve for x
    x = 1,670,002,201.19/64,115.68
  6. Step 6: Final answer
    x = 26,046.70

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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.