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Finding the Fourth Proportional to 17.63, 24.32 and 11.16

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Solution

The fourth proportional to 17.63, 24.32 and 11.16 is: 15.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.63 : 24.32 = 11.16 : x
  2. Step 2: Convert to fraction form
    17.63/24.32 = 11.16/x
  3. Step 3: Cross multiply
    17.63x = 24.32 × 11.16
  4. Step 4: Simplify right side
    17.63x = 271.44
  5. Step 5: Solve for x
    x = 271.44/17.63
  6. Step 6: Final answer
    x = 15.40

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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.