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Finding the Fourth Proportional to 96.12, 144.18 and 32

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Solution

The fourth proportional to 96.12, 144.18 and 32 is: 48

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.12 : 144.18 = 32 : x
  2. Step 2: Convert to fraction form
    96.12/144.18 = 32/x
  3. Step 3: Cross multiply
    96.12x = 144.18 × 32
  4. Step 4: Simplify right side
    96.12x = 4,613.76
  5. Step 5: Solve for x
    x = 4,613.76/96.12
  6. Step 6: Final answer
    x = 48

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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.