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Finding the Third Proportional to 12,863.81 and 19,234.97

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Solution

The third proportional to 12,863.81 and 19,234.97 is: 28,761.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,863.81 : 19,234.97 = 19,234.97 : x
  2. Step 2: Convert to fraction form
    12,863.81/19,234.97 = 19,234.97/x
  3. Step 3: Cross multiply
    12,863.81x = 19,234.97 × 19,234.97
  4. Step 4: Simplify right side
    12,863.81x = 369,984,022.81
  5. Step 5: Solve for x
    x = 369,984,022.81/12,863.81
  6. Step 6: Final answer
    x = 28,761.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.