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Finding the Fourth Proportional to 18,610,793.70, 27,916,190.55 and 13,469,102.03

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Solution

The fourth proportional to 18,610,793.70, 27,916,190.55 and 13,469,102.03 is: 20,203,653.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,610,793.70 : 27,916,190.55 = 13,469,102.03 : x
  2. Step 2: Convert to fraction form
    18,610,793.70/27,916,190.55 = 13,469,102.03/x
  3. Step 3: Cross multiply
    18,610,793.70x = 27,916,190.55 × 13,469,102.03
  4. Step 4: Simplify right side
    18,610,793.70x = 376,006,018,667,290.88
  5. Step 5: Solve for x
    x = 376,006,018,667,290.88/18,610,793.70
  6. Step 6: Final answer
    x = 20,203,653.04

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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.