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Finding the Fourth Proportional to 33.01, 49.52 and 12.74

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Solution

The fourth proportional to 33.01, 49.52 and 12.74 is: 19.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.01 : 49.52 = 12.74 : x
  2. Step 2: Convert to fraction form
    33.01/49.52 = 12.74/x
  3. Step 3: Cross multiply
    33.01x = 49.52 × 12.74
  4. Step 4: Simplify right side
    33.01x = 630.67
  5. Step 5: Solve for x
    x = 630.67/33.01
  6. Step 6: Final answer
    x = 19.11

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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.