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Finding the Third Proportional to 4,187,808 and 6,719,031

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Solution

The third proportional to 4,187,808 and 6,719,031 is: 10,780,192.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187,808 : 6,719,031 = 6,719,031 : x
  2. Step 2: Convert to fraction form
    4,187,808/6,719,031 = 6,719,031/x
  3. Step 3: Cross multiply
    4,187,808x = 6,719,031 × 6,719,031
  4. Step 4: Simplify right side
    4,187,808x = 45,145,377,578,961
  5. Step 5: Solve for x
    x = 45,145,377,578,961/4,187,808
  6. Step 6: Final answer
    x = 10,780,192.78

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.