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Finding the Fourth Proportional to 14.84, 22.15 and 13.24

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Solution

The fourth proportional to 14.84, 22.15 and 13.24 is: 19.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.84 : 22.15 = 13.24 : x
  2. Step 2: Convert to fraction form
    14.84/22.15 = 13.24/x
  3. Step 3: Cross multiply
    14.84x = 22.15 × 13.24
  4. Step 4: Simplify right side
    14.84x = 293.27
  5. Step 5: Solve for x
    x = 293.27/14.84
  6. Step 6: Final answer
    x = 19.76

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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.