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Finding the Fourth Proportional to 38,659.20, 57,828.60 and 36,297.60

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Solution

The fourth proportional to 38,659.20, 57,828.60 and 36,297.60 is: 54,295.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,659.20 : 57,828.60 = 36,297.60 : x
  2. Step 2: Convert to fraction form
    38,659.20/57,828.60 = 36,297.60/x
  3. Step 3: Cross multiply
    38,659.20x = 57,828.60 × 36,297.60
  4. Step 4: Simplify right side
    38,659.20x = 2,099,039,391.36
  5. Step 5: Solve for x
    x = 2,099,039,391.36/38,659.20
  6. Step 6: Final answer
    x = 54,295.99

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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.