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Finding the Fourth Proportional to 10.97, 16.46 and 5.63

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Solution

The fourth proportional to 10.97, 16.46 and 5.63 is: 8.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.97 : 16.46 = 5.63 : x
  2. Step 2: Convert to fraction form
    10.97/16.46 = 5.63/x
  3. Step 3: Cross multiply
    10.97x = 16.46 × 5.63
  4. Step 4: Simplify right side
    10.97x = 92.56
  5. Step 5: Solve for x
    x = 92.56/10.97
  6. Step 6: Final answer
    x = 8.44

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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.