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Finding the Third Proportional to 3,647,139.75 and 8,442,480.38

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Solution

The third proportional to 3,647,139.75 and 8,442,480.38 is: 19,542,841.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,647,139.75 : 8,442,480.38 = 8,442,480.38 : x
  2. Step 2: Convert to fraction form
    3,647,139.75/8,442,480.38 = 8,442,480.38/x
  3. Step 3: Cross multiply
    3,647,139.75x = 8,442,480.38 × 8,442,480.38
  4. Step 4: Simplify right side
    3,647,139.75x = 71,275,474,882,260.14
  5. Step 5: Solve for x
    x = 71,275,474,882,260.14/3,647,139.75
  6. Step 6: Final answer
    x = 19,542,841.72

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.