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Finding the Fourth Proportional to 70,951.20, 106,378.20 and 33,529.20

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Solution

The fourth proportional to 70,951.20, 106,378.20 and 33,529.20 is: 50,270.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,951.20 : 106,378.20 = 33,529.20 : x
  2. Step 2: Convert to fraction form
    70,951.20/106,378.20 = 33,529.20/x
  3. Step 3: Cross multiply
    70,951.20x = 106,378.20 × 33,529.20
  4. Step 4: Simplify right side
    70,951.20x = 3,566,775,943.44
  5. Step 5: Solve for x
    x = 3,566,775,943.44/70,951.20
  6. Step 6: Final answer
    x = 50,270.83

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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.