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Finding the Third Proportional to 4,112 and 8,734

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Solution

The third proportional to 4,112 and 8,734 is: 18,551.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,112 : 8,734 = 8,734 : x
  2. Step 2: Convert to fraction form
    4,112/8,734 = 8,734/x
  3. Step 3: Cross multiply
    4,112x = 8,734 × 8,734
  4. Step 4: Simplify right side
    4,112x = 76,282,756
  5. Step 5: Solve for x
    x = 76,282,756/4,112
  6. Step 6: Final answer
    x = 18,551.25

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.