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Finding the Fourth Proportional to 35,893.66, 49,535.94 and 20,790.40

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Solution

The fourth proportional to 35,893.66, 49,535.94 and 20,790.40 is: 28,692.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,893.66 : 49,535.94 = 20,790.40 : x
  2. Step 2: Convert to fraction form
    35,893.66/49,535.94 = 20,790.40/x
  3. Step 3: Cross multiply
    35,893.66x = 49,535.94 × 20,790.40
  4. Step 4: Simplify right side
    35,893.66x = 1,029,872,006.98
  5. Step 5: Solve for x
    x = 1,029,872,006.98/35,893.66
  6. Step 6: Final answer
    x = 28,692.31

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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.