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Finding the Fourth Proportional to 24.34, 33.60 and 18.22

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Solution

The fourth proportional to 24.34, 33.60 and 18.22 is: 25.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.34 : 33.60 = 18.22 : x
  2. Step 2: Convert to fraction form
    24.34/33.60 = 18.22/x
  3. Step 3: Cross multiply
    24.34x = 33.60 × 18.22
  4. Step 4: Simplify right side
    24.34x = 611.93
  5. Step 5: Solve for x
    x = 611.93/24.34
  6. Step 6: Final answer
    x = 25.15

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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.