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Finding the Third Proportional to 18,736.50 and 39,204

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Solution

The third proportional to 18,736.50 and 39,204 is: 82,029.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736.50 : 39,204 = 39,204 : x
  2. Step 2: Convert to fraction form
    18,736.50/39,204 = 39,204/x
  3. Step 3: Cross multiply
    18,736.50x = 39,204 × 39,204
  4. Step 4: Simplify right side
    18,736.50x = 1,536,953,616
  5. Step 5: Solve for x
    x = 1,536,953,616/18,736.50
  6. Step 6: Final answer
    x = 82,029.92

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.