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Finding the Third Proportional to 3,938 and 5,599

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Solution

The third proportional to 3,938 and 5,599 is: 7,960.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938 : 5,599 = 5,599 : x
  2. Step 2: Convert to fraction form
    3,938/5,599 = 5,599/x
  3. Step 3: Cross multiply
    3,938x = 5,599 × 5,599
  4. Step 4: Simplify right side
    3,938x = 31,348,801
  5. Step 5: Solve for x
    x = 31,348,801/3,938
  6. Step 6: Final answer
    x = 7,960.59

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.