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Finding the Third Proportional to 3,361 and 3,631

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Solution

The third proportional to 3,361 and 3,631 is: 3,922.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,361 : 3,631 = 3,631 : x
  2. Step 2: Convert to fraction form
    3,361/3,631 = 3,631/x
  3. Step 3: Cross multiply
    3,361x = 3,631 × 3,631
  4. Step 4: Simplify right side
    3,361x = 13,184,161
  5. Step 5: Solve for x
    x = 13,184,161/3,361
  6. Step 6: Final answer
    x = 3,922.69

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.