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Finding the Fourth Proportional to 57,757.80, 79,711.38 and 35,091.84

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Solution

The fourth proportional to 57,757.80, 79,711.38 and 35,091.84 is: 48,430.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,757.80 : 79,711.38 = 35,091.84 : x
  2. Step 2: Convert to fraction form
    57,757.80/79,711.38 = 35,091.84/x
  3. Step 3: Cross multiply
    57,757.80x = 79,711.38 × 35,091.84
  4. Step 4: Simplify right side
    57,757.80x = 2,797,218,993.14
  5. Step 5: Solve for x
    x = 2,797,218,993.14/57,757.80
  6. Step 6: Final answer
    x = 48,430.15

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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.