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Finding the Fourth Proportional to 17.67, 24.40 and 14.93

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Solution

The fourth proportional to 17.67, 24.40 and 14.93 is: 20.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.67 : 24.40 = 14.93 : x
  2. Step 2: Convert to fraction form
    17.67/24.40 = 14.93/x
  3. Step 3: Cross multiply
    17.67x = 24.40 × 14.93
  4. Step 4: Simplify right side
    17.67x = 364.42
  5. Step 5: Solve for x
    x = 364.42/17.67
  6. Step 6: Final answer
    x = 20.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.