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Finding the Third Proportional to 231.75 and 333.75

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Solution

The third proportional to 231.75 and 333.75 is: 480.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.75 : 333.75 = 333.75 : x
  2. Step 2: Convert to fraction form
    231.75/333.75 = 333.75/x
  3. Step 3: Cross multiply
    231.75x = 333.75 × 333.75
  4. Step 4: Simplify right side
    231.75x = 111,389.06
  5. Step 5: Solve for x
    x = 111,389.06/231.75
  6. Step 6: Final answer
    x = 480.64

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.