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Finding the Fourth Proportional to 18,599.73, 27,899.75 and 6,120.60

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Solution

The fourth proportional to 18,599.73, 27,899.75 and 6,120.60 is: 9,180.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,599.73 : 27,899.75 = 6,120.60 : x
  2. Step 2: Convert to fraction form
    18,599.73/27,899.75 = 6,120.60/x
  3. Step 3: Cross multiply
    18,599.73x = 27,899.75 × 6,120.60
  4. Step 4: Simplify right side
    18,599.73x = 170,763,179.25
  5. Step 5: Solve for x
    x = 170,763,179.25/18,599.73
  6. Step 6: Final answer
    x = 9,180.95

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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.