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Finding the Fourth Proportional to 71,936.40, 107,900.62 and 22,016.46

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Solution

The fourth proportional to 71,936.40, 107,900.62 and 22,016.46 is: 33,023.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,936.40 : 107,900.62 = 22,016.46 : x
  2. Step 2: Convert to fraction form
    71,936.40/107,900.62 = 22,016.46/x
  3. Step 3: Cross multiply
    71,936.40x = 107,900.62 × 22,016.46
  4. Step 4: Simplify right side
    71,936.40x = 2,375,589,684.21
  5. Step 5: Solve for x
    x = 2,375,589,684.21/71,936.40
  6. Step 6: Final answer
    x = 33,023.47

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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.