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Finding the Fourth Proportional to 68,993.76, 103,515.60 and 33,958.02

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Solution

The fourth proportional to 68,993.76, 103,515.60 and 33,958.02 is: 50,949.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,993.76 : 103,515.60 = 33,958.02 : x
  2. Step 2: Convert to fraction form
    68,993.76/103,515.60 = 33,958.02/x
  3. Step 3: Cross multiply
    68,993.76x = 103,515.60 × 33,958.02
  4. Step 4: Simplify right side
    68,993.76x = 3,515,184,815.11
  5. Step 5: Solve for x
    x = 3,515,184,815.11/68,993.76
  6. Step 6: Final answer
    x = 50,949.32

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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.