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Finding the Third Proportional to 11,108.25 and 15,270.75

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Solution

The third proportional to 11,108.25 and 15,270.75 is: 20,993.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.25 : 15,270.75 = 15,270.75 : x
  2. Step 2: Convert to fraction form
    11,108.25/15,270.75 = 15,270.75/x
  3. Step 3: Cross multiply
    11,108.25x = 15,270.75 × 15,270.75
  4. Step 4: Simplify right side
    11,108.25x = 233,195,805.56
  5. Step 5: Solve for x
    x = 233,195,805.56/11,108.25
  6. Step 6: Final answer
    x = 20,993.03

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.