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Finding the Fourth Proportional to 96.92, 145.38 and 24.79

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Solution

The fourth proportional to 96.92, 145.38 and 24.79 is: 37.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.92 : 145.38 = 24.79 : x
  2. Step 2: Convert to fraction form
    96.92/145.38 = 24.79/x
  3. Step 3: Cross multiply
    96.92x = 145.38 × 24.79
  4. Step 4: Simplify right side
    96.92x = 3,603.24
  5. Step 5: Solve for x
    x = 3,603.24/96.92
  6. Step 6: Final answer
    x = 37.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.