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Finding the Third Proportional to 7,671 and 12,238

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Solution

The third proportional to 7,671 and 12,238 is: 19,524.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,671 : 12,238 = 12,238 : x
  2. Step 2: Convert to fraction form
    7,671/12,238 = 12,238/x
  3. Step 3: Cross multiply
    7,671x = 12,238 × 12,238
  4. Step 4: Simplify right side
    7,671x = 149,768,644
  5. Step 5: Solve for x
    x = 149,768,644/7,671
  6. Step 6: Final answer
    x = 19,524.01

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.