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Finding the Fourth Proportional to 31,983.80, 44,083.04 and 21,894.44

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Solution

The fourth proportional to 31,983.80, 44,083.04 and 21,894.44 is: 30,176.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,983.80 : 44,083.04 = 21,894.44 : x
  2. Step 2: Convert to fraction form
    31,983.80/44,083.04 = 21,894.44/x
  3. Step 3: Cross multiply
    31,983.80x = 44,083.04 × 21,894.44
  4. Step 4: Simplify right side
    31,983.80x = 965,173,144.41
  5. Step 5: Solve for x
    x = 965,173,144.41/31,983.80
  6. Step 6: Final answer
    x = 30,176.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.