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Finding the Fourth Proportional to 33,908.90, 50,866.18 and 11,713.28

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Solution

The fourth proportional to 33,908.90, 50,866.18 and 11,713.28 is: 17,570.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,908.90 : 50,866.18 = 11,713.28 : x
  2. Step 2: Convert to fraction form
    33,908.90/50,866.18 = 11,713.28/x
  3. Step 3: Cross multiply
    33,908.90x = 50,866.18 × 11,713.28
  4. Step 4: Simplify right side
    33,908.90x = 595,809,525.26
  5. Step 5: Solve for x
    x = 595,809,525.26/33,908.90
  6. Step 6: Final answer
    x = 17,570.89

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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.