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Finding the Fourth Proportional to 33,381.45, 50,068.94 and 8,757.45

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Solution

The fourth proportional to 33,381.45, 50,068.94 and 8,757.45 is: 13,135.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,381.45 : 50,068.94 = 8,757.45 : x
  2. Step 2: Convert to fraction form
    33,381.45/50,068.94 = 8,757.45/x
  3. Step 3: Cross multiply
    33,381.45x = 50,068.94 × 8,757.45
  4. Step 4: Simplify right side
    33,381.45x = 438,476,194.82
  5. Step 5: Solve for x
    x = 438,476,194.82/33,381.45
  6. Step 6: Final answer
    x = 13,135.33

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1.5x scale

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.