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Finding the Third Proportional to 11,436.75 and 20,382.75

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Solution

The third proportional to 11,436.75 and 20,382.75 is: 36,326.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,436.75 : 20,382.75 = 20,382.75 : x
  2. Step 2: Convert to fraction form
    11,436.75/20,382.75 = 20,382.75/x
  3. Step 3: Cross multiply
    11,436.75x = 20,382.75 × 20,382.75
  4. Step 4: Simplify right side
    11,436.75x = 415,456,497.56
  5. Step 5: Solve for x
    x = 415,456,497.56/11,436.75
  6. Step 6: Final answer
    x = 36,326.45

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.