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Finding the Fourth Proportional to 33,317.72, 49,976.52 and 8,693.72

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Solution

The fourth proportional to 33,317.72, 49,976.52 and 8,693.72 is: 13,040.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,317.72 : 49,976.52 = 8,693.72 : x
  2. Step 2: Convert to fraction form
    33,317.72/49,976.52 = 8,693.72/x
  3. Step 3: Cross multiply
    33,317.72x = 49,976.52 × 8,693.72
  4. Step 4: Simplify right side
    33,317.72x = 434,481,871.45
  5. Step 5: Solve for x
    x = 434,481,871.45/33,317.72
  6. Step 6: Final answer
    x = 13,040.56

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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.