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Finding the Fourth Proportional to 71,679.05, 107,530.20 and 23,633.30

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Solution

The fourth proportional to 71,679.05, 107,530.20 and 23,633.30 is: 35,453.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,679.05 : 107,530.20 = 23,633.30 : x
  2. Step 2: Convert to fraction form
    71,679.05/107,530.20 = 23,633.30/x
  3. Step 3: Cross multiply
    71,679.05x = 107,530.20 × 23,633.30
  4. Step 4: Simplify right side
    71,679.05x = 2,541,293,849.36
  5. Step 5: Solve for x
    x = 2,541,293,849.36/71,679.05
  6. Step 6: Final answer
    x = 35,453.79

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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.