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Finding the Fourth Proportional to 57,697.26, 79,622.28 and 31,855.86

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Solution

The fourth proportional to 57,697.26, 79,622.28 and 31,855.86 is: 43,961.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,697.26 : 79,622.28 = 31,855.86 : x
  2. Step 2: Convert to fraction form
    57,697.26/79,622.28 = 31,855.86/x
  3. Step 3: Cross multiply
    57,697.26x = 79,622.28 × 31,855.86
  4. Step 4: Simplify right side
    57,697.26x = 2,536,436,204.56
  5. Step 5: Solve for x
    x = 2,536,436,204.56/57,697.26
  6. Step 6: Final answer
    x = 43,961.12

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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.