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Finding the Fourth Proportional to 14.62, 20.12 and 10.52

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Solution

The fourth proportional to 14.62, 20.12 and 10.52 is: 14.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.62 : 20.12 = 10.52 : x
  2. Step 2: Convert to fraction form
    14.62/20.12 = 10.52/x
  3. Step 3: Cross multiply
    14.62x = 20.12 × 10.52
  4. Step 4: Simplify right side
    14.62x = 211.65
  5. Step 5: Solve for x
    x = 211.65/14.62
  6. Step 6: Final answer
    x = 14.48

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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.