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Finding the Third Proportional to 247.25 and 543.25

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Solution

The third proportional to 247.25 and 543.25 is: 1,193.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.25 : 543.25 = 543.25 : x
  2. Step 2: Convert to fraction form
    247.25/543.25 = 543.25/x
  3. Step 3: Cross multiply
    247.25x = 543.25 × 543.25
  4. Step 4: Simplify right side
    247.25x = 295,120.56
  5. Step 5: Solve for x
    x = 295,120.56/247.25
  6. Step 6: Final answer
    x = 1,193.61

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.