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Finding the Fourth Proportional to 32.22, 44.46 and 18.22

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Solution

The fourth proportional to 32.22, 44.46 and 18.22 is: 25.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.22 : 44.46 = 18.22 : x
  2. Step 2: Convert to fraction form
    32.22/44.46 = 18.22/x
  3. Step 3: Cross multiply
    32.22x = 44.46 × 18.22
  4. Step 4: Simplify right side
    32.22x = 809.98
  5. Step 5: Solve for x
    x = 809.98/32.22
  6. Step 6: Final answer
    x = 25.14

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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.