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Finding the Fourth Proportional to 4.24, 6.36 and 3.25

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Solution

The fourth proportional to 4.24, 6.36 and 3.25 is: 4.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.24 : 6.36 = 3.25 : x
  2. Step 2: Convert to fraction form
    4.24/6.36 = 3.25/x
  3. Step 3: Cross multiply
    4.24x = 6.36 × 3.25
  4. Step 4: Simplify right side
    4.24x = 20.67
  5. Step 5: Solve for x
    x = 20.67/4.24
  6. Step 6: Final answer
    x = 4.88

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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.