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Finding the Third Proportional to 4,044,942.56 and 8,690,211.56

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Solution

The third proportional to 4,044,942.56 and 8,690,211.56 is: 18,670,172.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,044,942.56 : 8,690,211.56 = 8,690,211.56 : x
  2. Step 2: Convert to fraction form
    4,044,942.56/8,690,211.56 = 8,690,211.56/x
  3. Step 3: Cross multiply
    4,044,942.56x = 8,690,211.56 × 8,690,211.56
  4. Step 4: Simplify right side
    4,044,942.56x = 75,519,777,001,008.69
  5. Step 5: Solve for x
    x = 75,519,777,001,008.69/4,044,942.56
  6. Step 6: Final answer
    x = 18,670,172.90

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.