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Finding the Third Proportional to 231.50 and 574.25

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Solution

The third proportional to 231.50 and 574.25 is: 1,424.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.50 : 574.25 = 574.25 : x
  2. Step 2: Convert to fraction form
    231.50/574.25 = 574.25/x
  3. Step 3: Cross multiply
    231.50x = 574.25 × 574.25
  4. Step 4: Simplify right side
    231.50x = 329,763.06
  5. Step 5: Solve for x
    x = 329,763.06/231.50
  6. Step 6: Final answer
    x = 1,424.46

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Why These Related Problems?

These problems maintain the same ratio (2.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.