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Finding the Fourth Proportional to 5.32, 7.34 and 5.22

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Solution

The fourth proportional to 5.32, 7.34 and 5.22 is: 7.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5.32 : 7.34 = 5.22 : x
  2. Step 2: Convert to fraction form
    5.32/7.34 = 5.22/x
  3. Step 3: Cross multiply
    5.32x = 7.34 × 5.22
  4. Step 4: Simplify right side
    5.32x = 38.31
  5. Step 5: Solve for x
    x = 38.31/5.32
  6. Step 6: Final answer
    x = 7.20

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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.