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Finding the Fourth Proportional to 5.96, 8.91 and 5.90

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Solution

The fourth proportional to 5.96, 8.91 and 5.90 is: 8.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5.96 : 8.91 = 5.90 : x
  2. Step 2: Convert to fraction form
    5.96/8.91 = 5.90/x
  3. Step 3: Cross multiply
    5.96x = 8.91 × 5.90
  4. Step 4: Simplify right side
    5.96x = 52.52
  5. Step 5: Solve for x
    x = 52.52/5.96
  6. Step 6: Final answer
    x = 8.82

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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.