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Finding the Third Proportional to 1,939,743 and 4,215,249

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Solution

The third proportional to 1,939,743 and 4,215,249 is: 9,160,143.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,743 : 4,215,249 = 4,215,249 : x
  2. Step 2: Convert to fraction form
    1,939,743/4,215,249 = 4,215,249/x
  3. Step 3: Cross multiply
    1,939,743x = 4,215,249 × 4,215,249
  4. Step 4: Simplify right side
    1,939,743x = 17,768,324,132,001
  5. Step 5: Solve for x
    x = 17,768,324,132,001/1,939,743
  6. Step 6: Final answer
    x = 9,160,143.45

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.