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Finding the Fourth Proportional to 39.84, 59.83 and 36.68

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Solution

The fourth proportional to 39.84, 59.83 and 36.68 is: 55.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39.84 : 59.83 = 36.68 : x
  2. Step 2: Convert to fraction form
    39.84/59.83 = 36.68/x
  3. Step 3: Cross multiply
    39.84x = 59.83 × 36.68
  4. Step 4: Simplify right side
    39.84x = 2,194.56
  5. Step 5: Solve for x
    x = 2,194.56/39.84
  6. Step 6: Final answer
    x = 55.08

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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.