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Finding the Fourth Proportional to 33,871.78, 50,803.62 and 8,913.75

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Solution

The fourth proportional to 33,871.78, 50,803.62 and 8,913.75 is: 13,369.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,871.78 : 50,803.62 = 8,913.75 : x
  2. Step 2: Convert to fraction form
    33,871.78/50,803.62 = 8,913.75/x
  3. Step 3: Cross multiply
    33,871.78x = 50,803.62 × 8,913.75
  4. Step 4: Simplify right side
    33,871.78x = 452,850,767.78
  5. Step 5: Solve for x
    x = 452,850,767.78/33,871.78
  6. Step 6: Final answer
    x = 13,369.56

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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.