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Finding the Fourth Proportional to 49,171.52, 67,846.52 and 28,749.65

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Solution

The fourth proportional to 49,171.52, 67,846.52 and 28,749.65 is: 39,668.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,171.52 : 67,846.52 = 28,749.65 : x
  2. Step 2: Convert to fraction form
    49,171.52/67,846.52 = 28,749.65/x
  3. Step 3: Cross multiply
    49,171.52x = 67,846.52 × 28,749.65
  4. Step 4: Simplify right side
    49,171.52x = 1,950,563,436.36
  5. Step 5: Solve for x
    x = 1,950,563,436.36/49,171.52
  6. Step 6: Final answer
    x = 39,668.56

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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.