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Finding the Fourth Proportional to 14.52, 20.04 and 7.96

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Solution

The fourth proportional to 14.52, 20.04 and 7.96 is: 10.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.52 : 20.04 = 7.96 : x
  2. Step 2: Convert to fraction form
    14.52/20.04 = 7.96/x
  3. Step 3: Cross multiply
    14.52x = 20.04 × 7.96
  4. Step 4: Simplify right side
    14.52x = 159.57
  5. Step 5: Solve for x
    x = 159.57/14.52
  6. Step 6: Final answer
    x = 10.99

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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.