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Finding the Fourth Proportional to 18,722,964.30, 28,084,446.45 and 16,597,200.30

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Solution

The fourth proportional to 18,722,964.30, 28,084,446.45 and 16,597,200.30 is: 24,895,800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,964.30 : 28,084,446.45 = 16,597,200.30 : x
  2. Step 2: Convert to fraction form
    18,722,964.30/28,084,446.45 = 16,597,200.30/x
  3. Step 3: Cross multiply
    18,722,964.30x = 28,084,446.45 × 16,597,200.30
  4. Step 4: Simplify right side
    18,722,964.30x = 466,123,183,045,273.94
  5. Step 5: Solve for x
    x = 466,123,183,045,273.94/18,722,964.30
  6. Step 6: Final answer
    x = 24,895,800.45

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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.