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Finding the Fourth Proportional to 96.24, 144.36 and 32.12

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Solution

The fourth proportional to 96.24, 144.36 and 32.12 is: 48.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.24 : 144.36 = 32.12 : x
  2. Step 2: Convert to fraction form
    96.24/144.36 = 32.12/x
  3. Step 3: Cross multiply
    96.24x = 144.36 × 32.12
  4. Step 4: Simplify right side
    96.24x = 4,636.84
  5. Step 5: Solve for x
    x = 4,636.84/96.24
  6. Step 6: Final answer
    x = 48.18

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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.