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Finding the Third Proportional to 75.75 and 92.25

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Solution

The third proportional to 75.75 and 92.25 is: 112.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75.75 : 92.25 = 92.25 : x
  2. Step 2: Convert to fraction form
    75.75/92.25 = 92.25/x
  3. Step 3: Cross multiply
    75.75x = 92.25 × 92.25
  4. Step 4: Simplify right side
    75.75x = 8,510.06
  5. Step 5: Solve for x
    x = 8,510.06/75.75
  6. Step 6: Final answer
    x = 112.34

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.