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Finding the Fourth Proportional to 41,099.80, 61,654.02 and 13,391.32

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Solution

The fourth proportional to 41,099.80, 61,654.02 and 13,391.32 is: 20,088.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,099.80 : 61,654.02 = 13,391.32 : x
  2. Step 2: Convert to fraction form
    41,099.80/61,654.02 = 13,391.32/x
  3. Step 3: Cross multiply
    41,099.80x = 61,654.02 × 13,391.32
  4. Step 4: Simplify right side
    41,099.80x = 825,628,711.11
  5. Step 5: Solve for x
    x = 825,628,711.11/41,099.80
  6. Step 6: Final answer
    x = 20,088.39

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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.