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Finding the Fourth Proportional to 57,228.80, 85,843.20 and 54,003.20

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Solution

The fourth proportional to 57,228.80, 85,843.20 and 54,003.20 is: 81,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,228.80 : 85,843.20 = 54,003.20 : x
  2. Step 2: Convert to fraction form
    57,228.80/85,843.20 = 54,003.20/x
  3. Step 3: Cross multiply
    57,228.80x = 85,843.20 × 54,003.20
  4. Step 4: Simplify right side
    57,228.80x = 4,635,807,498.24
  5. Step 5: Solve for x
    x = 4,635,807,498.24/57,228.80
  6. Step 6: Final answer
    x = 81,004.80

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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.