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Finding the Third Proportional to 32.75 and 50.75

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Solution

The third proportional to 32.75 and 50.75 is: 78.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.75 : 50.75 = 50.75 : x
  2. Step 2: Convert to fraction form
    32.75/50.75 = 50.75/x
  3. Step 3: Cross multiply
    32.75x = 50.75 × 50.75
  4. Step 4: Simplify right side
    32.75x = 2,575.56
  5. Step 5: Solve for x
    x = 2,575.56/32.75
  6. Step 6: Final answer
    x = 78.64

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.