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Finding the Fourth Proportional to 33,316.88, 49,975.32 and 8,692.88

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Solution

The fourth proportional to 33,316.88, 49,975.32 and 8,692.88 is: 13,039.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,316.88 : 49,975.32 = 8,692.88 : x
  2. Step 2: Convert to fraction form
    33,316.88/49,975.32 = 8,692.88/x
  3. Step 3: Cross multiply
    33,316.88x = 49,975.32 × 8,692.88
  4. Step 4: Simplify right side
    33,316.88x = 434,429,209.85
  5. Step 5: Solve for x
    x = 434,429,209.85/33,316.88
  6. Step 6: Final answer
    x = 13,039.31

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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.