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Finding the Fourth Proportional to 33,914.61, 50,855.49 and 11,720.21

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Solution

The fourth proportional to 33,914.61, 50,855.49 and 11,720.21 is: 17,574.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,914.61 : 50,855.49 = 11,720.21 : x
  2. Step 2: Convert to fraction form
    33,914.61/50,855.49 = 11,720.21/x
  3. Step 3: Cross multiply
    33,914.61x = 50,855.49 × 11,720.21
  4. Step 4: Simplify right side
    33,914.61x = 596,036,768.18
  5. Step 5: Solve for x
    x = 596,036,768.18/33,914.61
  6. Step 6: Final answer
    x = 17,574.63

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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.