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Finding the Third Proportional to 1,287,974.25 and 2,002,860

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Solution

The third proportional to 1,287,974.25 and 2,002,860 is: 3,114,540.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,974.25 : 2,002,860 = 2,002,860 : x
  2. Step 2: Convert to fraction form
    1,287,974.25/2,002,860 = 2,002,860/x
  3. Step 3: Cross multiply
    1,287,974.25x = 2,002,860 × 2,002,860
  4. Step 4: Simplify right side
    1,287,974.25x = 4,011,448,179,600
  5. Step 5: Solve for x
    x = 4,011,448,179,600/1,287,974.25
  6. Step 6: Final answer
    x = 3,114,540.67

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.