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Finding the Fourth Proportional to 57,378.75, 79,180.92 and 31,884.99

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Solution

The fourth proportional to 57,378.75, 79,180.92 and 31,884.99 is: 44,000.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,378.75 : 79,180.92 = 31,884.99 : x
  2. Step 2: Convert to fraction form
    57,378.75/79,180.92 = 31,884.99/x
  3. Step 3: Cross multiply
    57,378.75x = 79,180.92 × 31,884.99
  4. Step 4: Simplify right side
    57,378.75x = 2,524,682,842.39
  5. Step 5: Solve for x
    x = 2,524,682,842.39/57,378.75
  6. Step 6: Final answer
    x = 44,000.31

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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.