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Finding the Fourth Proportional to 14.24, 19.54 and 13.98

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Solution

The fourth proportional to 14.24, 19.54 and 13.98 is: 19.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.24 : 19.54 = 13.98 : x
  2. Step 2: Convert to fraction form
    14.24/19.54 = 13.98/x
  3. Step 3: Cross multiply
    14.24x = 19.54 × 13.98
  4. Step 4: Simplify right side
    14.24x = 273.17
  5. Step 5: Solve for x
    x = 273.17/14.24
  6. Step 6: Final answer
    x = 19.18

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.