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Finding the Fourth Proportional to 33,703.97, 50,557.16 and 12,641.87

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Solution

The fourth proportional to 33,703.97, 50,557.16 and 12,641.87 is: 18,963.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,703.97 : 50,557.16 = 12,641.87 : x
  2. Step 2: Convert to fraction form
    33,703.97/50,557.16 = 12,641.87/x
  3. Step 3: Cross multiply
    33,703.97x = 50,557.16 × 12,641.87
  4. Step 4: Simplify right side
    33,703.97x = 639,137,044.29
  5. Step 5: Solve for x
    x = 639,137,044.29/33,703.97
  6. Step 6: Final answer
    x = 18,963.26

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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.