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Finding the Third Proportional to 3,890 and 5,849

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Solution

The third proportional to 3,890 and 5,849 is: 8,794.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890 : 5,849 = 5,849 : x
  2. Step 2: Convert to fraction form
    3,890/5,849 = 5,849/x
  3. Step 3: Cross multiply
    3,890x = 5,849 × 5,849
  4. Step 4: Simplify right side
    3,890x = 34,210,801
  5. Step 5: Solve for x
    x = 34,210,801/3,890
  6. Step 6: Final answer
    x = 8,794.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.