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Finding the Fourth Proportional to 57,745.60, 86,620.83 and 18,301.84

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Solution

The fourth proportional to 57,745.60, 86,620.83 and 18,301.84 is: 27,453.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,745.60 : 86,620.83 = 18,301.84 : x
  2. Step 2: Convert to fraction form
    57,745.60/86,620.83 = 18,301.84/x
  3. Step 3: Cross multiply
    57,745.60x = 86,620.83 × 18,301.84
  4. Step 4: Simplify right side
    57,745.60x = 1,585,320,571.33
  5. Step 5: Solve for x
    x = 1,585,320,571.33/57,745.60
  6. Step 6: Final answer
    x = 27,453.53

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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.