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Finding the Fourth Proportional to 5.53, 8.33 and 5.29

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Solution

The fourth proportional to 5.53, 8.33 and 5.29 is: 7.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5.53 : 8.33 = 5.29 : x
  2. Step 2: Convert to fraction form
    5.53/8.33 = 5.29/x
  3. Step 3: Cross multiply
    5.53x = 8.33 × 5.29
  4. Step 4: Simplify right side
    5.53x = 44.02
  5. Step 5: Solve for x
    x = 44.02/5.53
  6. Step 6: Final answer
    x = 7.96

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.