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Finding the Fourth Proportional to 68,765.60, 103,033.20 and 33,629.60

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Solution

The fourth proportional to 68,765.60, 103,033.20 and 33,629.60 is: 50,388.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,765.60 : 103,033.20 = 33,629.60 : x
  2. Step 2: Convert to fraction form
    68,765.60/103,033.20 = 33,629.60/x
  3. Step 3: Cross multiply
    68,765.60x = 103,033.20 × 33,629.60
  4. Step 4: Simplify right side
    68,765.60x = 3,464,965,302.72
  5. Step 5: Solve for x
    x = 3,464,965,302.72/68,765.60
  6. Step 6: Final answer
    x = 50,388.06

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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.