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Finding the Fourth Proportional to 16.92, 25.35 and 14.64

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Solution

The fourth proportional to 16.92, 25.35 and 14.64 is: 21.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.92 : 25.35 = 14.64 : x
  2. Step 2: Convert to fraction form
    16.92/25.35 = 14.64/x
  3. Step 3: Cross multiply
    16.92x = 25.35 × 14.64
  4. Step 4: Simplify right side
    16.92x = 371.12
  5. Step 5: Solve for x
    x = 371.12/16.92
  6. Step 6: Final answer
    x = 21.93

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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.