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Finding the Third Proportional to 10,912,198 and 15,172,539

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Solution

The third proportional to 10,912,198 and 15,172,539 is: 21,096,202.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912,198 : 15,172,539 = 15,172,539 : x
  2. Step 2: Convert to fraction form
    10,912,198/15,172,539 = 15,172,539/x
  3. Step 3: Cross multiply
    10,912,198x = 15,172,539 × 15,172,539
  4. Step 4: Simplify right side
    10,912,198x = 230,205,939,706,521
  5. Step 5: Solve for x
    x = 230,205,939,706,521/10,912,198
  6. Step 6: Final answer
    x = 21,096,202.59

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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.