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Finding the Fourth Proportional to 7.49, 10.33 and 5.67

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Solution

The fourth proportional to 7.49, 10.33 and 5.67 is: 7.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.49 : 10.33 = 5.67 : x
  2. Step 2: Convert to fraction form
    7.49/10.33 = 5.67/x
  3. Step 3: Cross multiply
    7.49x = 10.33 × 5.67
  4. Step 4: Simplify right side
    7.49x = 58.58
  5. Step 5: Solve for x
    x = 58.58/7.49
  6. Step 6: Final answer
    x = 7.82

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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.