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Finding the Fourth Proportional to 49,789.33, 74,697.84 and 21,711.84

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Solution

The fourth proportional to 49,789.33, 74,697.84 and 21,711.84 is: 32,573.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,789.33 : 74,697.84 = 21,711.84 : x
  2. Step 2: Convert to fraction form
    49,789.33/74,697.84 = 21,711.84/x
  3. Step 3: Cross multiply
    49,789.33x = 74,697.84 × 21,711.84
  4. Step 4: Simplify right side
    49,789.33x = 1,621,827,622.70
  5. Step 5: Solve for x
    x = 1,621,827,622.70/49,789.33
  6. Step 6: Final answer
    x = 32,573.80

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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.