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Finding the Third Proportional to 862 and 1,337

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Solution

The third proportional to 862 and 1,337 is: 2,073.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    862 : 1,337 = 1,337 : x
  2. Step 2: Convert to fraction form
    862/1,337 = 1,337/x
  3. Step 3: Cross multiply
    862x = 1,337 × 1,337
  4. Step 4: Simplify right side
    862x = 1,787,569
  5. Step 5: Solve for x
    x = 1,787,569/862
  6. Step 6: Final answer
    x = 2,073.75

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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.