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Finding the Fourth Proportional to 66,446.88, 99,687.15 and 22,073.85

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Solution

The fourth proportional to 66,446.88, 99,687.15 and 22,073.85 is: 33,116.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,446.88 : 99,687.15 = 22,073.85 : x
  2. Step 2: Convert to fraction form
    66,446.88/99,687.15 = 22,073.85/x
  3. Step 3: Cross multiply
    66,446.88x = 99,687.15 × 22,073.85
  4. Step 4: Simplify right side
    66,446.88x = 2,200,479,196.03
  5. Step 5: Solve for x
    x = 2,200,479,196.03/66,446.88
  6. Step 6: Final answer
    x = 33,116.37

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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.