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Finding the Fourth Proportional to 67,406.40, 100,974.26 and 33,570.44

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Solution

The fourth proportional to 67,406.40, 100,974.26 and 33,570.44 is: 50,288.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,406.40 : 100,974.26 = 33,570.44 : x
  2. Step 2: Convert to fraction form
    67,406.40/100,974.26 = 33,570.44/x
  3. Step 3: Cross multiply
    67,406.40x = 100,974.26 × 33,570.44
  4. Step 4: Simplify right side
    67,406.40x = 3,389,750,336.87
  5. Step 5: Solve for x
    x = 3,389,750,336.87/67,406.40
  6. Step 6: Final answer
    x = 50,288.26

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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.