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Finding the Fourth Proportional to 96.58, 144.82 and 35.72

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Solution

The fourth proportional to 96.58, 144.82 and 35.72 is: 53.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.58 : 144.82 = 35.72 : x
  2. Step 2: Convert to fraction form
    96.58/144.82 = 35.72/x
  3. Step 3: Cross multiply
    96.58x = 144.82 × 35.72
  4. Step 4: Simplify right side
    96.58x = 5,172.97
  5. Step 5: Solve for x
    x = 5,172.97/96.58
  6. Step 6: Final answer
    x = 53.56

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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.