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Finding the Fourth Proportional to 6.44, 8.89 and 5.99

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Solution

The fourth proportional to 6.44, 8.89 and 5.99 is: 8.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.44 : 8.89 = 5.99 : x
  2. Step 2: Convert to fraction form
    6.44/8.89 = 5.99/x
  3. Step 3: Cross multiply
    6.44x = 8.89 × 5.99
  4. Step 4: Simplify right side
    6.44x = 53.19
  5. Step 5: Solve for x
    x = 53.19/6.44
  6. Step 6: Final answer
    x = 8.27

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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.