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Finding the Fourth Proportional to 33,918.15, 50,876.43 and 8,959.94

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Solution

The fourth proportional to 33,918.15, 50,876.43 and 8,959.94 is: 13,439.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,918.15 : 50,876.43 = 8,959.94 : x
  2. Step 2: Convert to fraction form
    33,918.15/50,876.43 = 8,959.94/x
  3. Step 3: Cross multiply
    33,918.15x = 50,876.43 × 8,959.94
  4. Step 4: Simplify right side
    33,918.15x = 455,849,853.81
  5. Step 5: Solve for x
    x = 455,849,853.81/33,918.15
  6. Step 6: Final answer
    x = 13,439.70

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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.