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Finding the Fourth Proportional to 29.69, 44.46 and 14.42

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Solution

The fourth proportional to 29.69, 44.46 and 14.42 is: 21.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.69 : 44.46 = 14.42 : x
  2. Step 2: Convert to fraction form
    29.69/44.46 = 14.42/x
  3. Step 3: Cross multiply
    29.69x = 44.46 × 14.42
  4. Step 4: Simplify right side
    29.69x = 641.22
  5. Step 5: Solve for x
    x = 641.22/29.69
  6. Step 6: Final answer
    x = 21.60

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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.