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Finding the Third Proportional to 18,606 and 39,132

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Solution

The third proportional to 18,606 and 39,132 is: 82,302.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,606 : 39,132 = 39,132 : x
  2. Step 2: Convert to fraction form
    18,606/39,132 = 39,132/x
  3. Step 3: Cross multiply
    18,606x = 39,132 × 39,132
  4. Step 4: Simplify right side
    18,606x = 1,531,313,424
  5. Step 5: Solve for x
    x = 1,531,313,424/18,606
  6. Step 6: Final answer
    x = 82,302.13

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.