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Finding the Fourth Proportional to 29,456.80, 44,077.20 and 21,680.80

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Solution

The fourth proportional to 29,456.80, 44,077.20 and 21,680.80 is: 32,441.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,456.80 : 44,077.20 = 21,680.80 : x
  2. Step 2: Convert to fraction form
    29,456.80/44,077.20 = 21,680.80/x
  3. Step 3: Cross multiply
    29,456.80x = 44,077.20 × 21,680.80
  4. Step 4: Simplify right side
    29,456.80x = 955,628,957.76
  5. Step 5: Solve for x
    x = 955,628,957.76/29,456.80
  6. Step 6: Final answer
    x = 32,441.71

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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.