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Finding the Fourth Proportional to 16.02, 22.02 and 14.40

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Solution

The fourth proportional to 16.02, 22.02 and 14.40 is: 19.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.02 : 22.02 = 14.40 : x
  2. Step 2: Convert to fraction form
    16.02/22.02 = 14.40/x
  3. Step 3: Cross multiply
    16.02x = 22.02 × 14.40
  4. Step 4: Simplify right side
    16.02x = 317.09
  5. Step 5: Solve for x
    x = 317.09/16.02
  6. Step 6: Final answer
    x = 19.79

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.