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Finding the Fourth Proportional to 70,198.82, 96,880.11 and 39,993.59

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Solution

The fourth proportional to 70,198.82, 96,880.11 and 39,993.59 is: 55,194.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,198.82 : 96,880.11 = 39,993.59 : x
  2. Step 2: Convert to fraction form
    70,198.82/96,880.11 = 39,993.59/x
  3. Step 3: Cross multiply
    70,198.82x = 96,880.11 × 39,993.59
  4. Step 4: Simplify right side
    70,198.82x = 3,874,583,398.49
  5. Step 5: Solve for x
    x = 3,874,583,398.49/70,198.82
  6. Step 6: Final answer
    x = 55,194.42

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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.