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Finding the Fourth Proportional to 18,542.62, 27,811.61 and 6,061.60

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Solution

The fourth proportional to 18,542.62, 27,811.61 and 6,061.60 is: 9,091.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,542.62 : 27,811.61 = 6,061.60 : x
  2. Step 2: Convert to fraction form
    18,542.62/27,811.61 = 6,061.60/x
  3. Step 3: Cross multiply
    18,542.62x = 27,811.61 × 6,061.60
  4. Step 4: Simplify right side
    18,542.62x = 168,582,855.18
  5. Step 5: Solve for x
    x = 168,582,855.18/18,542.62
  6. Step 6: Final answer
    x = 9,091.64

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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.