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Finding the Fourth Proportional to 16.37, 24.48 and 11.87

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Solution

The fourth proportional to 16.37, 24.48 and 11.87 is: 17.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.37 : 24.48 = 11.87 : x
  2. Step 2: Convert to fraction form
    16.37/24.48 = 11.87/x
  3. Step 3: Cross multiply
    16.37x = 24.48 × 11.87
  4. Step 4: Simplify right side
    16.37x = 290.58
  5. Step 5: Solve for x
    x = 290.58/16.37
  6. Step 6: Final answer
    x = 17.75

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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.