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Finding the Fourth Proportional to 16, 22.06 and 14.17

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Solution

The fourth proportional to 16, 22.06 and 14.17 is: 19.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    16 : 22.06 = 14.17 : x
  2. Step 2: Convert to fraction form
    16/22.06 = 14.17/x
  3. Step 3: Cross multiply
    16x = 22.06 × 14.17
  4. Step 4: Simplify right side
    16x = 312.59
  5. Step 5: Solve for x
    x = 312.59/16
  6. Step 6: Final answer
    x = 19.54

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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.