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Finding the Fourth Proportional to 71,328.70, 106,944.45 and 33,906.70

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Solution

The fourth proportional to 71,328.70, 106,944.45 and 33,906.70 is: 50,836.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,328.70 : 106,944.45 = 33,906.70 : x
  2. Step 2: Convert to fraction form
    71,328.70/106,944.45 = 33,906.70/x
  3. Step 3: Cross multiply
    71,328.70x = 106,944.45 × 33,906.70
  4. Step 4: Simplify right side
    71,328.70x = 3,626,133,382.82
  5. Step 5: Solve for x
    x = 3,626,133,382.82/71,328.70
  6. Step 6: Final answer
    x = 50,836.95

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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.