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Finding the Fourth Proportional to 71,028.69, 106,468.13 and 23,631.09

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Solution

The fourth proportional to 71,028.69, 106,468.13 and 23,631.09 is: 35,421.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,028.69 : 106,468.13 = 23,631.09 : x
  2. Step 2: Convert to fraction form
    71,028.69/106,468.13 = 23,631.09/x
  3. Step 3: Cross multiply
    71,028.69x = 106,468.13 × 23,631.09
  4. Step 4: Simplify right side
    71,028.69x = 2,515,957,962.16
  5. Step 5: Solve for x
    x = 2,515,957,962.16/71,028.69
  6. Step 6: Final answer
    x = 35,421.71

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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.