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Finding the Third Proportional to 3,391 and 3,883

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Solution

The third proportional to 3,391 and 3,883 is: 4,446.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391 : 3,883 = 3,883 : x
  2. Step 2: Convert to fraction form
    3,391/3,883 = 3,883/x
  3. Step 3: Cross multiply
    3,391x = 3,883 × 3,883
  4. Step 4: Simplify right side
    3,391x = 15,077,689
  5. Step 5: Solve for x
    x = 15,077,689/3,391
  6. Step 6: Final answer
    x = 4,446.38

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.