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Finding the Fourth Proportional to 49,435, 68,220.56 and 27,079

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Solution

The fourth proportional to 49,435, 68,220.56 and 27,079 is: 37,369.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,435 : 68,220.56 = 27,079 : x
  2. Step 2: Convert to fraction form
    49,435/68,220.56 = 27,079/x
  3. Step 3: Cross multiply
    49,435x = 68,220.56 × 27,079
  4. Step 4: Simplify right side
    49,435x = 1,847,344,544.24
  5. Step 5: Solve for x
    x = 1,847,344,544.24/49,435
  6. Step 6: Final answer
    x = 37,369.16

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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.