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Finding the Third Proportional to 8,674 and 13,171

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Solution

The third proportional to 8,674 and 13,171 is: 19,999.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674 : 13,171 = 13,171 : x
  2. Step 2: Convert to fraction form
    8,674/13,171 = 13,171/x
  3. Step 3: Cross multiply
    8,674x = 13,171 × 13,171
  4. Step 4: Simplify right side
    8,674x = 173,475,241
  5. Step 5: Solve for x
    x = 173,475,241/8,674
  6. Step 6: Final answer
    x = 19,999.45

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.