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Finding the Fourth Proportional to 57,879.88, 87,253.65 and 54,022.10

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Solution

The fourth proportional to 57,879.88, 87,253.65 and 54,022.10 is: 81,438.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,879.88 : 87,253.65 = 54,022.10 : x
  2. Step 2: Convert to fraction form
    57,879.88/87,253.65 = 54,022.10/x
  3. Step 3: Cross multiply
    57,879.88x = 87,253.65 × 54,022.10
  4. Step 4: Simplify right side
    57,879.88x = 4,713,625,405.67
  5. Step 5: Solve for x
    x = 4,713,625,405.67/57,879.88
  6. Step 6: Final answer
    x = 81,438.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.