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Finding the Fourth Proportional to 68,037.60, 93,891.60 and 38,229.60

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Solution

The fourth proportional to 68,037.60, 93,891.60 and 38,229.60 is: 52,756.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,037.60 : 93,891.60 = 38,229.60 : x
  2. Step 2: Convert to fraction form
    68,037.60/93,891.60 = 38,229.60/x
  3. Step 3: Cross multiply
    68,037.60x = 93,891.60 × 38,229.60
  4. Step 4: Simplify right side
    68,037.60x = 3,589,438,311.36
  5. Step 5: Solve for x
    x = 3,589,438,311.36/68,037.60
  6. Step 6: Final answer
    x = 52,756.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.