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Finding the Third Proportional to 3,486 and 5,601

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Solution

The third proportional to 3,486 and 5,601 is: 8,999.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486 : 5,601 = 5,601 : x
  2. Step 2: Convert to fraction form
    3,486/5,601 = 5,601/x
  3. Step 3: Cross multiply
    3,486x = 5,601 × 5,601
  4. Step 4: Simplify right side
    3,486x = 31,371,201
  5. Step 5: Solve for x
    x = 31,371,201/3,486
  6. Step 6: Final answer
    x = 8,999.20

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.