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Finding the Fourth Proportional to 38.82, 58.29 and 23.64

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Solution

The fourth proportional to 38.82, 58.29 and 23.64 is: 35.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38.82 : 58.29 = 23.64 : x
  2. Step 2: Convert to fraction form
    38.82/58.29 = 23.64/x
  3. Step 3: Cross multiply
    38.82x = 58.29 × 23.64
  4. Step 4: Simplify right side
    38.82x = 1,377.98
  5. Step 5: Solve for x
    x = 1,377.98/38.82
  6. Step 6: Final answer
    x = 35.50

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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.