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Finding the Fourth Proportional to 32.24, 48.44 and 18

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Solution

The fourth proportional to 32.24, 48.44 and 18 is: 27.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.24 : 48.44 = 18 : x
  2. Step 2: Convert to fraction form
    32.24/48.44 = 18/x
  3. Step 3: Cross multiply
    32.24x = 48.44 × 18
  4. Step 4: Simplify right side
    32.24x = 871.92
  5. Step 5: Solve for x
    x = 871.92/32.24
  6. Step 6: Final answer
    x = 27.04

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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.