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Finding the Third Proportional to 77.25 and 93

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Solution

The third proportional to 77.25 and 93 is: 111.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77.25 : 93 = 93 : x
  2. Step 2: Convert to fraction form
    77.25/93 = 93/x
  3. Step 3: Cross multiply
    77.25x = 93 × 93
  4. Step 4: Simplify right side
    77.25x = 8,649
  5. Step 5: Solve for x
    x = 8,649/77.25
  6. Step 6: Final answer
    x = 111.96

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Why These Related Problems?

These problems maintain the same ratio (1.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.