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Finding the Fourth Proportional to 33,768.80, 50,696.40 and 17,986.40

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Solution

The fourth proportional to 33,768.80, 50,696.40 and 17,986.40 is: 27,002.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,768.80 : 50,696.40 = 17,986.40 : x
  2. Step 2: Convert to fraction form
    33,768.80/50,696.40 = 17,986.40/x
  3. Step 3: Cross multiply
    33,768.80x = 50,696.40 × 17,986.40
  4. Step 4: Simplify right side
    33,768.80x = 911,845,728.96
  5. Step 5: Solve for x
    x = 911,845,728.96/33,768.80
  6. Step 6: Final answer
    x = 27,002.61

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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.