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Finding the Fourth Proportional to 4.46, 6.69 and 4.06

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Solution

The fourth proportional to 4.46, 6.69 and 4.06 is: 6.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.46 : 6.69 = 4.06 : x
  2. Step 2: Convert to fraction form
    4.46/6.69 = 4.06/x
  3. Step 3: Cross multiply
    4.46x = 6.69 × 4.06
  4. Step 4: Simplify right side
    4.46x = 27.16
  5. Step 5: Solve for x
    x = 27.16/4.46
  6. Step 6: Final answer
    x = 6.09

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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.