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Finding the Third Proportional to 7,638 and 16,182

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Solution

The third proportional to 7,638 and 16,182 is: 34,283.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638 : 16,182 = 16,182 : x
  2. Step 2: Convert to fraction form
    7,638/16,182 = 16,182/x
  3. Step 3: Cross multiply
    7,638x = 16,182 × 16,182
  4. Step 4: Simplify right side
    7,638x = 261,857,124
  5. Step 5: Solve for x
    x = 261,857,124/7,638
  6. Step 6: Final answer
    x = 34,283.47

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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.