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Finding the Third Proportional to 11,647,561.50 and 18,016,431.75

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Solution

The third proportional to 11,647,561.50 and 18,016,431.75 is: 27,867,791.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,647,561.50 : 18,016,431.75 = 18,016,431.75 : x
  2. Step 2: Convert to fraction form
    11,647,561.50/18,016,431.75 = 18,016,431.75/x
  3. Step 3: Cross multiply
    11,647,561.50x = 18,016,431.75 × 18,016,431.75
  4. Step 4: Simplify right side
    11,647,561.50x = 324,591,813,002,408.06
  5. Step 5: Solve for x
    x = 324,591,813,002,408.06/11,647,561.50
  6. Step 6: Final answer
    x = 27,867,791.30

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.