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Finding the Third Proportional to 12,131 and 16,302

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Solution

The third proportional to 12,131 and 16,302 is: 21,907.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131 : 16,302 = 16,302 : x
  2. Step 2: Convert to fraction form
    12,131/16,302 = 16,302/x
  3. Step 3: Cross multiply
    12,131x = 16,302 × 16,302
  4. Step 4: Simplify right side
    12,131x = 265,755,204
  5. Step 5: Solve for x
    x = 265,755,204/12,131
  6. Step 6: Final answer
    x = 21,907.11

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.