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Finding the Third Proportional to 5,215,917 and 10,998,186

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Solution

The third proportional to 5,215,917 and 10,998,186 is: 23,190,571.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215,917 : 10,998,186 = 10,998,186 : x
  2. Step 2: Convert to fraction form
    5,215,917/10,998,186 = 10,998,186/x
  3. Step 3: Cross multiply
    5,215,917x = 10,998,186 × 10,998,186
  4. Step 4: Simplify right side
    5,215,917x = 120,960,095,290,596
  5. Step 5: Solve for x
    x = 120,960,095,290,596/5,215,917
  6. Step 6: Final answer
    x = 23,190,571.34

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.