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Finding the Fourth Proportional to 32.48, 44.77 and 22.11

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Solution

The fourth proportional to 32.48, 44.77 and 22.11 is: 30.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.48 : 44.77 = 22.11 : x
  2. Step 2: Convert to fraction form
    32.48/44.77 = 22.11/x
  3. Step 3: Cross multiply
    32.48x = 44.77 × 22.11
  4. Step 4: Simplify right side
    32.48x = 989.59
  5. Step 5: Solve for x
    x = 989.59/32.48
  6. Step 6: Final answer
    x = 30.47

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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.