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Finding the Fourth Proportional to 25.52, 38.24 and 11.96

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Solution

The fourth proportional to 25.52, 38.24 and 11.96 is: 17.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.52 : 38.24 = 11.96 : x
  2. Step 2: Convert to fraction form
    25.52/38.24 = 11.96/x
  3. Step 3: Cross multiply
    25.52x = 38.24 × 11.96
  4. Step 4: Simplify right side
    25.52x = 457.50
  5. Step 5: Solve for x
    x = 457.50/25.52
  6. Step 6: Final answer
    x = 17.93

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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.