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Finding the Fourth Proportional to 57,028.72, 85,544.16 and 53,944.24

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Solution

The fourth proportional to 57,028.72, 85,544.16 and 53,944.24 is: 80,917.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,028.72 : 85,544.16 = 53,944.24 : x
  2. Step 2: Convert to fraction form
    57,028.72/85,544.16 = 53,944.24/x
  3. Step 3: Cross multiply
    57,028.72x = 85,544.16 × 53,944.24
  4. Step 4: Simplify right side
    57,028.72x = 4,614,614,697.64
  5. Step 5: Solve for x
    x = 4,614,614,697.64/57,028.72
  6. Step 6: Final answer
    x = 80,917.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.