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Finding the Fourth Proportional to 19,624.11, 29,436.11 and 5,583.87

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Solution

The fourth proportional to 19,624.11, 29,436.11 and 5,583.87 is: 8,375.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,624.11 : 29,436.11 = 5,583.87 : x
  2. Step 2: Convert to fraction form
    19,624.11/29,436.11 = 5,583.87/x
  3. Step 3: Cross multiply
    19,624.11x = 29,436.11 × 5,583.87
  4. Step 4: Simplify right side
    19,624.11x = 164,367,404.57
  5. Step 5: Solve for x
    x = 164,367,404.57/19,624.11
  6. Step 6: Final answer
    x = 8,375.79

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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.