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Finding the Fourth Proportional to 59.74, 82.42 and 35.18

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Solution

The fourth proportional to 59.74, 82.42 and 35.18 is: 48.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.74 : 82.42 = 35.18 : x
  2. Step 2: Convert to fraction form
    59.74/82.42 = 35.18/x
  3. Step 3: Cross multiply
    59.74x = 82.42 × 35.18
  4. Step 4: Simplify right side
    59.74x = 2,899.54
  5. Step 5: Solve for x
    x = 2,899.54/59.74
  6. Step 6: Final answer
    x = 48.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.