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Finding the Fourth Proportional to 3.44, 4.74 and 2.67

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Solution

The fourth proportional to 3.44, 4.74 and 2.67 is: 3.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.44 : 4.74 = 2.67 : x
  2. Step 2: Convert to fraction form
    3.44/4.74 = 2.67/x
  3. Step 3: Cross multiply
    3.44x = 4.74 × 2.67
  4. Step 4: Simplify right side
    3.44x = 12.64
  5. Step 5: Solve for x
    x = 12.64/3.44
  6. Step 6: Final answer
    x = 3.68

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Why These Related Problems?

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