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Finding the Third Proportional to 11,175.75 and 12,228.75

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Solution

The third proportional to 11,175.75 and 12,228.75 is: 13,380.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,175.75 : 12,228.75 = 12,228.75 : x
  2. Step 2: Convert to fraction form
    11,175.75/12,228.75 = 12,228.75/x
  3. Step 3: Cross multiply
    11,175.75x = 12,228.75 × 12,228.75
  4. Step 4: Simplify right side
    11,175.75x = 149,542,326.56
  5. Step 5: Solve for x
    x = 149,542,326.56/11,175.75
  6. Step 6: Final answer
    x = 13,380.97

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.