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Finding the Fourth Proportional to 4.40, 6.07 and 3.94

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Solution

The fourth proportional to 4.40, 6.07 and 3.94 is: 5.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.40 : 6.07 = 3.94 : x
  2. Step 2: Convert to fraction form
    4.40/6.07 = 3.94/x
  3. Step 3: Cross multiply
    4.40x = 6.07 × 3.94
  4. Step 4: Simplify right side
    4.40x = 23.92
  5. Step 5: Solve for x
    x = 23.92/4.40
  6. Step 6: Final answer
    x = 5.44

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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.