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Finding the Fourth Proportional to 18.24, 25.16 and 17.44

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Solution

The fourth proportional to 18.24, 25.16 and 17.44 is: 24.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.24 : 25.16 = 17.44 : x
  2. Step 2: Convert to fraction form
    18.24/25.16 = 17.44/x
  3. Step 3: Cross multiply
    18.24x = 25.16 × 17.44
  4. Step 4: Simplify right side
    18.24x = 438.79
  5. Step 5: Solve for x
    x = 438.79/18.24
  6. Step 6: Final answer
    x = 24.06

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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.