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Finding the Third Proportional to 3,831 and 5,917

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Solution

The third proportional to 3,831 and 5,917 is: 9,138.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831 : 5,917 = 5,917 : x
  2. Step 2: Convert to fraction form
    3,831/5,917 = 5,917/x
  3. Step 3: Cross multiply
    3,831x = 5,917 × 5,917
  4. Step 4: Simplify right side
    3,831x = 35,010,889
  5. Step 5: Solve for x
    x = 35,010,889/3,831
  6. Step 6: Final answer
    x = 9,138.84

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.