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Finding the Fourth Proportional to 71,626.97, 107,452.10 and 21,695.37

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Solution

The fourth proportional to 71,626.97, 107,452.10 and 21,695.37 is: 32,546.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,626.97 : 107,452.10 = 21,695.37 : x
  2. Step 2: Convert to fraction form
    71,626.97/107,452.10 = 21,695.37/x
  3. Step 3: Cross multiply
    71,626.97x = 107,452.10 × 21,695.37
  4. Step 4: Simplify right side
    71,626.97x = 2,331,212,958.30
  5. Step 5: Solve for x
    x = 2,331,212,958.30/71,626.97
  6. Step 6: Final answer
    x = 32,546.58

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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.