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Finding the Fourth Proportional to 57,755.72, 79,680.96 and 37,629.85

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Solution

The fourth proportional to 57,755.72, 79,680.96 and 37,629.85 is: 51,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,755.72 : 79,680.96 = 37,629.85 : x
  2. Step 2: Convert to fraction form
    57,755.72/79,680.96 = 37,629.85/x
  3. Step 3: Cross multiply
    57,755.72x = 79,680.96 × 37,629.85
  4. Step 4: Simplify right side
    57,755.72x = 2,998,382,373.45
  5. Step 5: Solve for x
    x = 2,998,382,373.45/57,755.72
  6. Step 6: Final answer
    x = 51,914.90

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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.