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Finding the Third Proportional to 3,968 and 8,674

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Solution

The third proportional to 3,968 and 8,674 is: 18,961.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968 : 8,674 = 8,674 : x
  2. Step 2: Convert to fraction form
    3,968/8,674 = 8,674/x
  3. Step 3: Cross multiply
    3,968x = 8,674 × 8,674
  4. Step 4: Simplify right side
    3,968x = 75,238,276
  5. Step 5: Solve for x
    x = 75,238,276/3,968
  6. Step 6: Final answer
    x = 18,961.26

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.