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Finding the Fourth Proportional to 94.53, 141.81 and 33.64

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Solution

The fourth proportional to 94.53, 141.81 and 33.64 is: 50.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.53 : 141.81 = 33.64 : x
  2. Step 2: Convert to fraction form
    94.53/141.81 = 33.64/x
  3. Step 3: Cross multiply
    94.53x = 141.81 × 33.64
  4. Step 4: Simplify right side
    94.53x = 4,770.67
  5. Step 5: Solve for x
    x = 4,770.67/94.53
  6. Step 6: Final answer
    x = 50.47

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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.