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Finding the Third Proportional to 231.25 and 497.25

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Solution

The third proportional to 231.25 and 497.25 is: 1,069.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.25 : 497.25 = 497.25 : x
  2. Step 2: Convert to fraction form
    231.25/497.25 = 497.25/x
  3. Step 3: Cross multiply
    231.25x = 497.25 × 497.25
  4. Step 4: Simplify right side
    231.25x = 247,257.56
  5. Step 5: Solve for x
    x = 247,257.56/231.25
  6. Step 6: Final answer
    x = 1,069.22

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.