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Finding the Third Proportional to 12,516.75 and 18,736.13

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Solution

The third proportional to 12,516.75 and 18,736.13 is: 28,045.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.75 : 18,736.13 = 18,736.13 : x
  2. Step 2: Convert to fraction form
    12,516.75/18,736.13 = 18,736.13/x
  3. Step 3: Cross multiply
    12,516.75x = 18,736.13 × 18,736.13
  4. Step 4: Simplify right side
    12,516.75x = 351,042,380.02
  5. Step 5: Solve for x
    x = 351,042,380.02/12,516.75
  6. Step 6: Final answer
    x = 28,045.81

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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.