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Finding the Third Proportional to 4,193,469 and 9,172,057

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Solution

The third proportional to 4,193,469 and 9,172,057 is: 20,061,345.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,193,469 : 9,172,057 = 9,172,057 : x
  2. Step 2: Convert to fraction form
    4,193,469/9,172,057 = 9,172,057/x
  3. Step 3: Cross multiply
    4,193,469x = 9,172,057 × 9,172,057
  4. Step 4: Simplify right side
    4,193,469x = 84,126,629,611,249
  5. Step 5: Solve for x
    x = 84,126,629,611,249/4,193,469
  6. Step 6: Final answer
    x = 20,061,345.30

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.