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Finding the Third Proportional to 7,220,189 and 15,857,374

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Solution

The third proportional to 7,220,189 and 15,857,374 is: 34,826,832.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220,189 : 15,857,374 = 15,857,374 : x
  2. Step 2: Convert to fraction form
    7,220,189/15,857,374 = 15,857,374/x
  3. Step 3: Cross multiply
    7,220,189x = 15,857,374 × 15,857,374
  4. Step 4: Simplify right side
    7,220,189x = 251,456,310,175,876
  5. Step 5: Solve for x
    x = 251,456,310,175,876/7,220,189
  6. Step 6: Final answer
    x = 34,826,832.12

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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.