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Finding the Third Proportional to 8,661.75 and 18,194.25

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Solution

The third proportional to 8,661.75 and 18,194.25 is: 38,217.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,661.75 : 18,194.25 = 18,194.25 : x
  2. Step 2: Convert to fraction form
    8,661.75/18,194.25 = 18,194.25/x
  3. Step 3: Cross multiply
    8,661.75x = 18,194.25 × 18,194.25
  4. Step 4: Simplify right side
    8,661.75x = 331,030,733.06
  5. Step 5: Solve for x
    x = 331,030,733.06/8,661.75
  6. Step 6: Final answer
    x = 38,217.53

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.