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Finding the Fourth Proportional to 38,533.20, 57,799.80 and 36,718.80

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Solution

The fourth proportional to 38,533.20, 57,799.80 and 36,718.80 is: 55,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,533.20 : 57,799.80 = 36,718.80 : x
  2. Step 2: Convert to fraction form
    38,533.20/57,799.80 = 36,718.80/x
  3. Step 3: Cross multiply
    38,533.20x = 57,799.80 × 36,718.80
  4. Step 4: Simplify right side
    38,533.20x = 2,122,339,296.24
  5. Step 5: Solve for x
    x = 2,122,339,296.24/38,533.20
  6. Step 6: Final answer
    x = 55,078.20

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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.