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Finding the Fourth Proportional to 4.96, 7.47 and 4.82

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Solution

The fourth proportional to 4.96, 7.47 and 4.82 is: 7.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.96 : 7.47 = 4.82 : x
  2. Step 2: Convert to fraction form
    4.96/7.47 = 4.82/x
  3. Step 3: Cross multiply
    4.96x = 7.47 × 4.82
  4. Step 4: Simplify right side
    4.96x = 36.01
  5. Step 5: Solve for x
    x = 36.01/4.96
  6. Step 6: Final answer
    x = 7.26

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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.