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Finding the Fourth Proportional to 5.62, 7.69 and 5.44

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Solution

The fourth proportional to 5.62, 7.69 and 5.44 is: 7.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5.62 : 7.69 = 5.44 : x
  2. Step 2: Convert to fraction form
    5.62/7.69 = 5.44/x
  3. Step 3: Cross multiply
    5.62x = 7.69 × 5.44
  4. Step 4: Simplify right side
    5.62x = 41.81
  5. Step 5: Solve for x
    x = 41.81/5.62
  6. Step 6: Final answer
    x = 7.45

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.