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Finding the Fourth Proportional to 49,889.74, 74,794.87 and 28,805.86

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Solution

The fourth proportional to 49,889.74, 74,794.87 and 28,805.86 is: 43,185.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,889.74 : 74,794.87 = 28,805.86 : x
  2. Step 2: Convert to fraction form
    49,889.74/74,794.87 = 28,805.86/x
  3. Step 3: Cross multiply
    49,889.74x = 74,794.87 × 28,805.86
  4. Step 4: Simplify right side
    49,889.74x = 2,154,530,553.94
  5. Step 5: Solve for x
    x = 2,154,530,553.94/49,889.74
  6. Step 6: Final answer
    x = 43,185.84

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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.