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Finding the Fourth Proportional to 2.96, 4.46 and 2.38

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Solution

The fourth proportional to 2.96, 4.46 and 2.38 is: 3.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2.96 : 4.46 = 2.38 : x
  2. Step 2: Convert to fraction form
    2.96/4.46 = 2.38/x
  3. Step 3: Cross multiply
    2.96x = 4.46 × 2.38
  4. Step 4: Simplify right side
    2.96x = 10.61
  5. Step 5: Solve for x
    x = 10.61/2.96
  6. Step 6: Final answer
    x = 3.59

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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.