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Finding the Fourth Proportional to 14.03, 19.35 and 11.98

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Solution

The fourth proportional to 14.03, 19.35 and 11.98 is: 16.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.03 : 19.35 = 11.98 : x
  2. Step 2: Convert to fraction form
    14.03/19.35 = 11.98/x
  3. Step 3: Cross multiply
    14.03x = 19.35 × 11.98
  4. Step 4: Simplify right side
    14.03x = 231.79
  5. Step 5: Solve for x
    x = 231.79/14.03
  6. Step 6: Final answer
    x = 16.52

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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.