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Finding the Third Proportional to 3,934 and 4,302

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Solution

The third proportional to 3,934 and 4,302 is: 4,704.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934 : 4,302 = 4,302 : x
  2. Step 2: Convert to fraction form
    3,934/4,302 = 4,302/x
  3. Step 3: Cross multiply
    3,934x = 4,302 × 4,302
  4. Step 4: Simplify right side
    3,934x = 18,507,204
  5. Step 5: Solve for x
    x = 18,507,204/3,934
  6. Step 6: Final answer
    x = 4,704.42

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.