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Finding the Fourth Proportional to 4.69, 7.01 and 3.68

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Solution

The fourth proportional to 4.69, 7.01 and 3.68 is: 5.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.69 : 7.01 = 3.68 : x
  2. Step 2: Convert to fraction form
    4.69/7.01 = 3.68/x
  3. Step 3: Cross multiply
    4.69x = 7.01 × 3.68
  4. Step 4: Simplify right side
    4.69x = 25.77
  5. Step 5: Solve for x
    x = 25.77/4.69
  6. Step 6: Final answer
    x = 5.50

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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.