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Finding the Third Proportional to 231.25 and 475

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Solution

The third proportional to 231.25 and 475 is: 975.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.25 : 475 = 475 : x
  2. Step 2: Convert to fraction form
    231.25/475 = 475/x
  3. Step 3: Cross multiply
    231.25x = 475 × 475
  4. Step 4: Simplify right side
    231.25x = 225,625
  5. Step 5: Solve for x
    x = 225,625/231.25
  6. Step 6: Final answer
    x = 975.68

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.