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Finding the Fourth Proportional to 16.13, 24.21 and 10.98

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Solution

The fourth proportional to 16.13, 24.21 and 10.98 is: 16.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.13 : 24.21 = 10.98 : x
  2. Step 2: Convert to fraction form
    16.13/24.21 = 10.98/x
  3. Step 3: Cross multiply
    16.13x = 24.21 × 10.98
  4. Step 4: Simplify right side
    16.13x = 265.83
  5. Step 5: Solve for x
    x = 265.83/16.13
  6. Step 6: Final answer
    x = 16.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.