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Finding the Third Proportional to 3,831 and 5,565

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Solution

The third proportional to 3,831 and 5,565 is: 8,083.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831 : 5,565 = 5,565 : x
  2. Step 2: Convert to fraction form
    3,831/5,565 = 5,565/x
  3. Step 3: Cross multiply
    3,831x = 5,565 × 5,565
  4. Step 4: Simplify right side
    3,831x = 30,969,225
  5. Step 5: Solve for x
    x = 30,969,225/3,831
  6. Step 6: Final answer
    x = 8,083.85

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.