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Finding the Third Proportional to 5,679,739 and 12,494,990

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Solution

The third proportional to 5,679,739 and 12,494,990 is: 27,488,019.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679,739 : 12,494,990 = 12,494,990 : x
  2. Step 2: Convert to fraction form
    5,679,739/12,494,990 = 12,494,990/x
  3. Step 3: Cross multiply
    5,679,739x = 12,494,990 × 12,494,990
  4. Step 4: Simplify right side
    5,679,739x = 156,124,775,100,100
  5. Step 5: Solve for x
    x = 156,124,775,100,100/5,679,739
  6. Step 6: Final answer
    x = 27,488,019.27

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.