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Finding the Fourth Proportional to 33,904.63, 50,866.67 and 13,129.75

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Solution

The fourth proportional to 33,904.63, 50,866.67 and 13,129.75 is: 19,698.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,904.63 : 50,866.67 = 13,129.75 : x
  2. Step 2: Convert to fraction form
    33,904.63/50,866.67 = 13,129.75/x
  3. Step 3: Cross multiply
    33,904.63x = 50,866.67 × 13,129.75
  4. Step 4: Simplify right side
    33,904.63x = 667,866,660.43
  5. Step 5: Solve for x
    x = 667,866,660.43/33,904.63
  6. Step 6: Final answer
    x = 19,698.39

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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.