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Finding the Fourth Proportional to 32.96, 49.36 and 22.24

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Solution

The fourth proportional to 32.96, 49.36 and 22.24 is: 33.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.96 : 49.36 = 22.24 : x
  2. Step 2: Convert to fraction form
    32.96/49.36 = 22.24/x
  3. Step 3: Cross multiply
    32.96x = 49.36 × 22.24
  4. Step 4: Simplify right side
    32.96x = 1,097.77
  5. Step 5: Solve for x
    x = 1,097.77/32.96
  6. Step 6: Final answer
    x = 33.31

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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.