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Finding the Fourth Proportional to 49,687.52, 68,612.64 and 33,809.90

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Solution

The fourth proportional to 49,687.52, 68,612.64 and 33,809.90 is: 46,687.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,687.52 : 68,612.64 = 33,809.90 : x
  2. Step 2: Convert to fraction form
    49,687.52/68,612.64 = 33,809.90/x
  3. Step 3: Cross multiply
    49,687.52x = 68,612.64 × 33,809.90
  4. Step 4: Simplify right side
    49,687.52x = 2,319,786,497.14
  5. Step 5: Solve for x
    x = 2,319,786,497.14/49,687.52
  6. Step 6: Final answer
    x = 46,687.51

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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.