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Finding the Third Proportional to 16,979.50 and 36,149

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Solution

The third proportional to 16,979.50 and 36,149 is: 76,960.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,979.50 : 36,149 = 36,149 : x
  2. Step 2: Convert to fraction form
    16,979.50/36,149 = 36,149/x
  3. Step 3: Cross multiply
    16,979.50x = 36,149 × 36,149
  4. Step 4: Simplify right side
    16,979.50x = 1,306,750,201
  5. Step 5: Solve for x
    x = 1,306,750,201/16,979.50
  6. Step 6: Final answer
    x = 76,960.46

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.