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Finding the Third Proportional to 18,176.50 and 39,134

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Solution

The third proportional to 18,176.50 and 39,134 is: 84,255.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,176.50 : 39,134 = 39,134 : x
  2. Step 2: Convert to fraction form
    18,176.50/39,134 = 39,134/x
  3. Step 3: Cross multiply
    18,176.50x = 39,134 × 39,134
  4. Step 4: Simplify right side
    18,176.50x = 1,531,469,956
  5. Step 5: Solve for x
    x = 1,531,469,956/18,176.50
  6. Step 6: Final answer
    x = 84,255.49

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.