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Finding the Third Proportional to 232.75 and 253.75

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Solution

The third proportional to 232.75 and 253.75 is: 276.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.75 : 253.75 = 253.75 : x
  2. Step 2: Convert to fraction form
    232.75/253.75 = 253.75/x
  3. Step 3: Cross multiply
    232.75x = 253.75 × 253.75
  4. Step 4: Simplify right side
    232.75x = 64,389.06
  5. Step 5: Solve for x
    x = 64,389.06/232.75
  6. Step 6: Final answer
    x = 276.64

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.