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Finding the Fourth Proportional to 17.88, 24.61 and 16.16

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Solution

The fourth proportional to 17.88, 24.61 and 16.16 is: 22.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.88 : 24.61 = 16.16 : x
  2. Step 2: Convert to fraction form
    17.88/24.61 = 16.16/x
  3. Step 3: Cross multiply
    17.88x = 24.61 × 16.16
  4. Step 4: Simplify right side
    17.88x = 397.52
  5. Step 5: Solve for x
    x = 397.52/17.88
  6. Step 6: Final answer
    x = 22.23

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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.