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Finding the Fourth Proportional to 22.36, 33.48 and 14.32

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Solution

The fourth proportional to 22.36, 33.48 and 14.32 is: 21.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.36 : 33.48 = 14.32 : x
  2. Step 2: Convert to fraction form
    22.36/33.48 = 14.32/x
  3. Step 3: Cross multiply
    22.36x = 33.48 × 14.32
  4. Step 4: Simplify right side
    22.36x = 479.43
  5. Step 5: Solve for x
    x = 479.43/22.36
  6. Step 6: Final answer
    x = 21.44

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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.