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Finding the Third Proportional to 3,927 and 9,084

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Solution

The third proportional to 3,927 and 9,084 is: 21,013.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927 : 9,084 = 9,084 : x
  2. Step 2: Convert to fraction form
    3,927/9,084 = 9,084/x
  3. Step 3: Cross multiply
    3,927x = 9,084 × 9,084
  4. Step 4: Simplify right side
    3,927x = 82,519,056
  5. Step 5: Solve for x
    x = 82,519,056/3,927
  6. Step 6: Final answer
    x = 21,013.26

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.