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Finding the Fourth Proportional to 36.66, 55.08 and 34.86

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Solution

The fourth proportional to 36.66, 55.08 and 34.86 is: 52.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.66 : 55.08 = 34.86 : x
  2. Step 2: Convert to fraction form
    36.66/55.08 = 34.86/x
  3. Step 3: Cross multiply
    36.66x = 55.08 × 34.86
  4. Step 4: Simplify right side
    36.66x = 1,920.09
  5. Step 5: Solve for x
    x = 1,920.09/36.66
  6. Step 6: Final answer
    x = 52.38

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.