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Finding the Third Proportional to 3,935 and 4,331

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Solution

The third proportional to 3,935 and 4,331 is: 4,766.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935 : 4,331 = 4,331 : x
  2. Step 2: Convert to fraction form
    3,935/4,331 = 4,331/x
  3. Step 3: Cross multiply
    3,935x = 4,331 × 4,331
  4. Step 4: Simplify right side
    3,935x = 18,757,561
  5. Step 5: Solve for x
    x = 18,757,561/3,935
  6. Step 6: Final answer
    x = 4,766.85

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.