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Finding the Third Proportional to 3,768 and 9,108

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Solution

The third proportional to 3,768 and 9,108 is: 22,015.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768 : 9,108 = 9,108 : x
  2. Step 2: Convert to fraction form
    3,768/9,108 = 9,108/x
  3. Step 3: Cross multiply
    3,768x = 9,108 × 9,108
  4. Step 4: Simplify right side
    3,768x = 82,955,664
  5. Step 5: Solve for x
    x = 82,955,664/3,768
  6. Step 6: Final answer
    x = 22,015.83

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.