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Finding the Fourth Proportional to 33,296, 45,929.02 and 20,724.80

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Solution

The fourth proportional to 33,296, 45,929.02 and 20,724.80 is: 28,588.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,296 : 45,929.02 = 20,724.80 : x
  2. Step 2: Convert to fraction form
    33,296/45,929.02 = 20,724.80/x
  3. Step 3: Cross multiply
    33,296x = 45,929.02 × 20,724.80
  4. Step 4: Simplify right side
    33,296x = 951,869,753.70
  5. Step 5: Solve for x
    x = 951,869,753.70/33,296
  6. Step 6: Final answer
    x = 28,588.11

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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.