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Finding the Fourth Proportional to 96.64, 144.93 and 35.74

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Solution

The fourth proportional to 96.64, 144.93 and 35.74 is: 53.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.64 : 144.93 = 35.74 : x
  2. Step 2: Convert to fraction form
    96.64/144.93 = 35.74/x
  3. Step 3: Cross multiply
    96.64x = 144.93 × 35.74
  4. Step 4: Simplify right side
    96.64x = 5,179.80
  5. Step 5: Solve for x
    x = 5,179.80/96.64
  6. Step 6: Final answer
    x = 53.60

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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.