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Finding the Fourth Proportional to 36.44, 54.66 and 18.16

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Solution

The fourth proportional to 36.44, 54.66 and 18.16 is: 27.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.44 : 54.66 = 18.16 : x
  2. Step 2: Convert to fraction form
    36.44/54.66 = 18.16/x
  3. Step 3: Cross multiply
    36.44x = 54.66 × 18.16
  4. Step 4: Simplify right side
    36.44x = 992.63
  5. Step 5: Solve for x
    x = 992.63/36.44
  6. Step 6: Final answer
    x = 27.24

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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.