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Finding the Third Proportional to 231.25 and 541.25

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Solution

The third proportional to 231.25 and 541.25 is: 1,266.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.25 : 541.25 = 541.25 : x
  2. Step 2: Convert to fraction form
    231.25/541.25 = 541.25/x
  3. Step 3: Cross multiply
    231.25x = 541.25 × 541.25
  4. Step 4: Simplify right side
    231.25x = 292,951.56
  5. Step 5: Solve for x
    x = 292,951.56/231.25
  6. Step 6: Final answer
    x = 1,266.82

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.