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Finding the Fourth Proportional to 57,745.80, 79,694.82 and 35,079.84

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Solution

The fourth proportional to 57,745.80, 79,694.82 and 35,079.84 is: 48,413.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,745.80 : 79,694.82 = 35,079.84 : x
  2. Step 2: Convert to fraction form
    57,745.80/79,694.82 = 35,079.84/x
  3. Step 3: Cross multiply
    57,745.80x = 79,694.82 × 35,079.84
  4. Step 4: Simplify right side
    57,745.80x = 2,795,681,534.43
  5. Step 5: Solve for x
    x = 2,795,681,534.43/57,745.80
  6. Step 6: Final answer
    x = 48,413.59

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1.5x scale

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.