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Finding the Third Proportional to 11,666.25 and 18,249.75

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Solution

The third proportional to 11,666.25 and 18,249.75 is: 28,548.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,666.25 : 18,249.75 = 18,249.75 : x
  2. Step 2: Convert to fraction form
    11,666.25/18,249.75 = 18,249.75/x
  3. Step 3: Cross multiply
    11,666.25x = 18,249.75 × 18,249.75
  4. Step 4: Simplify right side
    11,666.25x = 333,053,375.06
  5. Step 5: Solve for x
    x = 333,053,375.06/11,666.25
  6. Step 6: Final answer
    x = 28,548.45

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.