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Finding the Fourth Proportional to 56,790.15, 85,020.20 and 33,025.20

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Solution

The fourth proportional to 56,790.15, 85,020.20 and 33,025.20 is: 49,441.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,790.15 : 85,020.20 = 33,025.20 : x
  2. Step 2: Convert to fraction form
    56,790.15/85,020.20 = 33,025.20/x
  3. Step 3: Cross multiply
    56,790.15x = 85,020.20 × 33,025.20
  4. Step 4: Simplify right side
    56,790.15x = 2,807,808,943.91
  5. Step 5: Solve for x
    x = 2,807,808,943.91/56,790.15
  6. Step 6: Final answer
    x = 49,441.83

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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.