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Finding the Fourth Proportional to 32.22, 48.31 and 16.98

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Solution

The fourth proportional to 32.22, 48.31 and 16.98 is: 25.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.22 : 48.31 = 16.98 : x
  2. Step 2: Convert to fraction form
    32.22/48.31 = 16.98/x
  3. Step 3: Cross multiply
    32.22x = 48.31 × 16.98
  4. Step 4: Simplify right side
    32.22x = 820.30
  5. Step 5: Solve for x
    x = 820.30/32.22
  6. Step 6: Final answer
    x = 25.46

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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.