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Finding the Third Proportional to 96.75 and 145.69

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Solution

The third proportional to 96.75 and 145.69 is: 219.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.75 : 145.69 = 145.69 : x
  2. Step 2: Convert to fraction form
    96.75/145.69 = 145.69/x
  3. Step 3: Cross multiply
    96.75x = 145.69 × 145.69
  4. Step 4: Simplify right side
    96.75x = 21,224.85
  5. Step 5: Solve for x
    x = 21,224.85/96.75
  6. Step 6: Final answer
    x = 219.38

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.