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Finding the Fourth Proportional to 39.17, 58.76 and 26.42

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Solution

The fourth proportional to 39.17, 58.76 and 26.42 is: 39.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39.17 : 58.76 = 26.42 : x
  2. Step 2: Convert to fraction form
    39.17/58.76 = 26.42/x
  3. Step 3: Cross multiply
    39.17x = 58.76 × 26.42
  4. Step 4: Simplify right side
    39.17x = 1,552.44
  5. Step 5: Solve for x
    x = 1,552.44/39.17
  6. Step 6: Final answer
    x = 39.63

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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.