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Finding the Fourth Proportional to 49,680, 68,558.58 and 27,018.99

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Solution

The fourth proportional to 49,680, 68,558.58 and 27,018.99 is: 37,286.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,680 : 68,558.58 = 27,018.99 : x
  2. Step 2: Convert to fraction form
    49,680/68,558.58 = 27,018.99/x
  3. Step 3: Cross multiply
    49,680x = 68,558.58 × 27,018.99
  4. Step 4: Simplify right side
    49,680x = 1,852,383,587.43
  5. Step 5: Solve for x
    x = 1,852,383,587.43/49,680
  6. Step 6: Final answer
    x = 37,286.30

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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.