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Finding the Fourth Proportional to 45,350.80, 67,891.80 and 33,715.60

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Solution

The fourth proportional to 45,350.80, 67,891.80 and 33,715.60 is: 50,473.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,350.80 : 67,891.80 = 33,715.60 : x
  2. Step 2: Convert to fraction form
    45,350.80/67,891.80 = 33,715.60/x
  3. Step 3: Cross multiply
    45,350.80x = 67,891.80 × 33,715.60
  4. Step 4: Simplify right side
    45,350.80x = 2,289,012,772.08
  5. Step 5: Solve for x
    x = 2,289,012,772.08/45,350.80
  6. Step 6: Final answer
    x = 50,473.48

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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.