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Finding the Fourth Proportional to 5.98, 8.96 and 5.38

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Solution

The fourth proportional to 5.98, 8.96 and 5.38 is: 8.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5.98 : 8.96 = 5.38 : x
  2. Step 2: Convert to fraction form
    5.98/8.96 = 5.38/x
  3. Step 3: Cross multiply
    5.98x = 8.96 × 5.38
  4. Step 4: Simplify right side
    5.98x = 48.20
  5. Step 5: Solve for x
    x = 48.20/5.98
  6. Step 6: Final answer
    x = 8.06

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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.