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Finding the Fourth Proportional to 33,893.89, 46,776.84 and 18,789.82

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Solution

The fourth proportional to 33,893.89, 46,776.84 and 18,789.82 is: 25,931.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,893.89 : 46,776.84 = 18,789.82 : x
  2. Step 2: Convert to fraction form
    33,893.89/46,776.84 = 18,789.82/x
  3. Step 3: Cross multiply
    33,893.89x = 46,776.84 × 18,789.82
  4. Step 4: Simplify right side
    33,893.89x = 878,928,403.77
  5. Step 5: Solve for x
    x = 878,928,403.77/33,893.89
  6. Step 6: Final answer
    x = 25,931.77

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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.