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Finding the Third Proportional to 18,215,747 and 43,001,181

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Solution

The third proportional to 18,215,747 and 43,001,181 is: 101,511,157.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215,747 : 43,001,181 = 43,001,181 : x
  2. Step 2: Convert to fraction form
    18,215,747/43,001,181 = 43,001,181/x
  3. Step 3: Cross multiply
    18,215,747x = 43,001,181 × 43,001,181
  4. Step 4: Simplify right side
    18,215,747x = 1,849,101,567,394,761
  5. Step 5: Solve for x
    x = 1,849,101,567,394,761/18,215,747
  6. Step 6: Final answer
    x = 101,511,157.76

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.