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Finding the Fourth Proportional to 6.62, 9.13 and 4.67

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Solution

The fourth proportional to 6.62, 9.13 and 4.67 is: 6.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.62 : 9.13 = 4.67 : x
  2. Step 2: Convert to fraction form
    6.62/9.13 = 4.67/x
  3. Step 3: Cross multiply
    6.62x = 9.13 × 4.67
  4. Step 4: Simplify right side
    6.62x = 42.64
  5. Step 5: Solve for x
    x = 42.64/6.62
  6. Step 6: Final answer
    x = 6.44

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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.