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Finding the Fourth Proportional to 96.32, 144.48 and 35.47

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Solution

The fourth proportional to 96.32, 144.48 and 35.47 is: 53.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.32 : 144.48 = 35.47 : x
  2. Step 2: Convert to fraction form
    96.32/144.48 = 35.47/x
  3. Step 3: Cross multiply
    96.32x = 144.48 × 35.47
  4. Step 4: Simplify right side
    96.32x = 5,125.02
  5. Step 5: Solve for x
    x = 5,125.02/96.32
  6. Step 6: Final answer
    x = 53.21

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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.