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Finding the Fourth Proportional to 11.98, 16.52 and 10.02

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Solution

The fourth proportional to 11.98, 16.52 and 10.02 is: 13.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.98 : 16.52 = 10.02 : x
  2. Step 2: Convert to fraction form
    11.98/16.52 = 10.02/x
  3. Step 3: Cross multiply
    11.98x = 16.52 × 10.02
  4. Step 4: Simplify right side
    11.98x = 165.48
  5. Step 5: Solve for x
    x = 165.48/11.98
  6. Step 6: Final answer
    x = 13.82

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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.