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Finding the Third Proportional to 3,890 and 5,957

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Solution

The third proportional to 3,890 and 5,957 is: 9,122.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890 : 5,957 = 5,957 : x
  2. Step 2: Convert to fraction form
    3,890/5,957 = 5,957/x
  3. Step 3: Cross multiply
    3,890x = 5,957 × 5,957
  4. Step 4: Simplify right side
    3,890x = 35,485,849
  5. Step 5: Solve for x
    x = 35,485,849/3,890
  6. Step 6: Final answer
    x = 9,122.33

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.