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Finding the Fourth Proportional to 6.98, 10.44 and 5.63

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Solution

The fourth proportional to 6.98, 10.44 and 5.63 is: 8.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.98 : 10.44 = 5.63 : x
  2. Step 2: Convert to fraction form
    6.98/10.44 = 5.63/x
  3. Step 3: Cross multiply
    6.98x = 10.44 × 5.63
  4. Step 4: Simplify right side
    6.98x = 58.73
  5. Step 5: Solve for x
    x = 58.73/6.98
  6. Step 6: Final answer
    x = 8.42

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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.