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Finding the Fourth Proportional to 94.66, 141.99 and 33.80

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Solution

The fourth proportional to 94.66, 141.99 and 33.80 is: 50.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.66 : 141.99 = 33.80 : x
  2. Step 2: Convert to fraction form
    94.66/141.99 = 33.80/x
  3. Step 3: Cross multiply
    94.66x = 141.99 × 33.80
  4. Step 4: Simplify right side
    94.66x = 4,798.43
  5. Step 5: Solve for x
    x = 4,798.43/94.66
  6. Step 6: Final answer
    x = 50.69

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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.