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Finding the Fourth Proportional to 46.44, 69.67 and 14.38

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Solution

The fourth proportional to 46.44, 69.67 and 14.38 is: 21.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.44 : 69.67 = 14.38 : x
  2. Step 2: Convert to fraction form
    46.44/69.67 = 14.38/x
  3. Step 3: Cross multiply
    46.44x = 69.67 × 14.38
  4. Step 4: Simplify right side
    46.44x = 1,001.85
  5. Step 5: Solve for x
    x = 1,001.85/46.44
  6. Step 6: Final answer
    x = 21.57

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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.