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Finding the Fourth Proportional to 29.91, 44.85 and 18.52

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Solution

The fourth proportional to 29.91, 44.85 and 18.52 is: 27.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.91 : 44.85 = 18.52 : x
  2. Step 2: Convert to fraction form
    29.91/44.85 = 18.52/x
  3. Step 3: Cross multiply
    29.91x = 44.85 × 18.52
  4. Step 4: Simplify right side
    29.91x = 830.62
  5. Step 5: Solve for x
    x = 830.62/29.91
  6. Step 6: Final answer
    x = 27.77

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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.