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Finding the Third Proportional to 18,736.31 and 40,251.94

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Solution

The third proportional to 18,736.31 and 40,251.94 is: 86,474.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736.31 : 40,251.94 = 40,251.94 : x
  2. Step 2: Convert to fraction form
    18,736.31/40,251.94 = 40,251.94/x
  3. Step 3: Cross multiply
    18,736.31x = 40,251.94 × 40,251.94
  4. Step 4: Simplify right side
    18,736.31x = 1,620,218,472.50
  5. Step 5: Solve for x
    x = 1,620,218,472.50/18,736.31
  6. Step 6: Final answer
    x = 86,474.78

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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.