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Finding the Fourth Proportional to 10.92, 16.46 and 10.88

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Solution

The fourth proportional to 10.92, 16.46 and 10.88 is: 16.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.92 : 16.46 = 10.88 : x
  2. Step 2: Convert to fraction form
    10.92/16.46 = 10.88/x
  3. Step 3: Cross multiply
    10.92x = 16.46 × 10.88
  4. Step 4: Simplify right side
    10.92x = 179.08
  5. Step 5: Solve for x
    x = 179.08/10.92
  6. Step 6: Final answer
    x = 16.40

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.