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Finding the Fourth Proportional to 33.74, 46.57 and 18.99

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Solution

The fourth proportional to 33.74, 46.57 and 18.99 is: 26.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.74 : 46.57 = 18.99 : x
  2. Step 2: Convert to fraction form
    33.74/46.57 = 18.99/x
  3. Step 3: Cross multiply
    33.74x = 46.57 × 18.99
  4. Step 4: Simplify right side
    33.74x = 884.30
  5. Step 5: Solve for x
    x = 884.30/33.74
  6. Step 6: Final answer
    x = 26.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.