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Finding the Fourth Proportional to 18,412.60, 27,618.90 and 8,044.60

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Solution

The fourth proportional to 18,412.60, 27,618.90 and 8,044.60 is: 12,066.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,412.60 : 27,618.90 = 8,044.60 : x
  2. Step 2: Convert to fraction form
    18,412.60/27,618.90 = 8,044.60/x
  3. Step 3: Cross multiply
    18,412.60x = 27,618.90 × 8,044.60
  4. Step 4: Simplify right side
    18,412.60x = 222,183,002.94
  5. Step 5: Solve for x
    x = 222,183,002.94/18,412.60
  6. Step 6: Final answer
    x = 12,066.90

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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.