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Finding the Fourth Proportional to 16,601.80, 24,902.70 and 15,500.20

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Solution

The fourth proportional to 16,601.80, 24,902.70 and 15,500.20 is: 23,250.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,601.80 : 24,902.70 = 15,500.20 : x
  2. Step 2: Convert to fraction form
    16,601.80/24,902.70 = 15,500.20/x
  3. Step 3: Cross multiply
    16,601.80x = 24,902.70 × 15,500.20
  4. Step 4: Simplify right side
    16,601.80x = 385,996,830.54
  5. Step 5: Solve for x
    x = 385,996,830.54/16,601.80
  6. Step 6: Final answer
    x = 23,250.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.