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Finding the Fourth Proportional to 45,321.80, 68,025.94 and 27,825.80

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Solution

The fourth proportional to 45,321.80, 68,025.94 and 27,825.80 is: 41,765.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,321.80 : 68,025.94 = 27,825.80 : x
  2. Step 2: Convert to fraction form
    45,321.80/68,025.94 = 27,825.80/x
  3. Step 3: Cross multiply
    45,321.80x = 68,025.94 × 27,825.80
  4. Step 4: Simplify right side
    45,321.80x = 1,892,876,201.25
  5. Step 5: Solve for x
    x = 1,892,876,201.25/45,321.80
  6. Step 6: Final answer
    x = 41,765.25

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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.