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Finding the Fourth Proportional to 5.94, 8.20 and 5.33

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Solution

The fourth proportional to 5.94, 8.20 and 5.33 is: 7.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5.94 : 8.20 = 5.33 : x
  2. Step 2: Convert to fraction form
    5.94/8.20 = 5.33/x
  3. Step 3: Cross multiply
    5.94x = 8.20 × 5.33
  4. Step 4: Simplify right side
    5.94x = 43.70
  5. Step 5: Solve for x
    x = 43.70/5.94
  6. Step 6: Final answer
    x = 7.36

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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.