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Finding the Fourth Proportional to 14.92, 22.26 and 14.24

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Solution

The fourth proportional to 14.92, 22.26 and 14.24 is: 21.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.92 : 22.26 = 14.24 : x
  2. Step 2: Convert to fraction form
    14.92/22.26 = 14.24/x
  3. Step 3: Cross multiply
    14.92x = 22.26 × 14.24
  4. Step 4: Simplify right side
    14.92x = 316.98
  5. Step 5: Solve for x
    x = 316.98/14.92
  6. Step 6: Final answer
    x = 21.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.