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Finding the Fourth Proportional to 96.28, 144.44 and 32.16

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Solution

The fourth proportional to 96.28, 144.44 and 32.16 is: 48.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.28 : 144.44 = 32.16 : x
  2. Step 2: Convert to fraction form
    96.28/144.44 = 32.16/x
  3. Step 3: Cross multiply
    96.28x = 144.44 × 32.16
  4. Step 4: Simplify right side
    96.28x = 4,645.19
  5. Step 5: Solve for x
    x = 4,645.19/96.28
  6. Step 6: Final answer
    x = 48.25

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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.