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Finding the Third Proportional to 132 and 301.25

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Solution

The third proportional to 132 and 301.25 is: 687.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    132 : 301.25 = 301.25 : x
  2. Step 2: Convert to fraction form
    132/301.25 = 301.25/x
  3. Step 3: Cross multiply
    132x = 301.25 × 301.25
  4. Step 4: Simplify right side
    132x = 90,751.56
  5. Step 5: Solve for x
    x = 90,751.56/132
  6. Step 6: Final answer
    x = 687.51

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Why These Related Problems?

These problems maintain the same ratio (2.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.