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Finding the Fourth Proportional to 4.88, 7.33 and 4.13

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Solution

The fourth proportional to 4.88, 7.33 and 4.13 is: 6.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.88 : 7.33 = 4.13 : x
  2. Step 2: Convert to fraction form
    4.88/7.33 = 4.13/x
  3. Step 3: Cross multiply
    4.88x = 7.33 × 4.13
  4. Step 4: Simplify right side
    4.88x = 30.28
  5. Step 5: Solve for x
    x = 30.28/4.88
  6. Step 6: Final answer
    x = 6.20

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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.