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Finding the Fourth Proportional to 53,794.83, 80,692.65 and 18,734.40

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Solution

The fourth proportional to 53,794.83, 80,692.65 and 18,734.40 is: 28,101.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,794.83 : 80,692.65 = 18,734.40 : x
  2. Step 2: Convert to fraction form
    53,794.83/80,692.65 = 18,734.40/x
  3. Step 3: Cross multiply
    53,794.83x = 80,692.65 × 18,734.40
  4. Step 4: Simplify right side
    53,794.83x = 1,511,728,382.16
  5. Step 5: Solve for x
    x = 1,511,728,382.16/53,794.83
  6. Step 6: Final answer
    x = 28,101.74

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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.