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Finding the Fourth Proportional to 40,757.30, 57,163.90 and 40,757.30

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Solution

The fourth proportional to 40,757.30, 57,163.90 and 40,757.30 is: 57,163.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,757.30 : 57,163.90 = 40,757.30 : x
  2. Step 2: Convert to fraction form
    40,757.30/57,163.90 = 40,757.30/x
  3. Step 3: Cross multiply
    40,757.30x = 57,163.90 × 40,757.30
  4. Step 4: Simplify right side
    40,757.30x = 2,329,846,221.47
  5. Step 5: Solve for x
    x = 2,329,846,221.47/40,757.30
  6. Step 6: Final answer
    x = 57,163.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.