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Finding the Third Proportional to 12,174.75 and 18,393.75

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Solution

The third proportional to 12,174.75 and 18,393.75 is: 27,789.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,174.75 : 18,393.75 = 18,393.75 : x
  2. Step 2: Convert to fraction form
    12,174.75/18,393.75 = 18,393.75/x
  3. Step 3: Cross multiply
    12,174.75x = 18,393.75 × 18,393.75
  4. Step 4: Simplify right side
    12,174.75x = 338,330,039.06
  5. Step 5: Solve for x
    x = 338,330,039.06/12,174.75
  6. Step 6: Final answer
    x = 27,789.49

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.