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Finding the Fourth Proportional to 18,583.64, 27,879.71 and 8,055.42

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Solution

The fourth proportional to 18,583.64, 27,879.71 and 8,055.42 is: 12,084.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,583.64 : 27,879.71 = 8,055.42 : x
  2. Step 2: Convert to fraction form
    18,583.64/27,879.71 = 8,055.42/x
  3. Step 3: Cross multiply
    18,583.64x = 27,879.71 × 8,055.42
  4. Step 4: Simplify right side
    18,583.64x = 224,582,773.53
  5. Step 5: Solve for x
    x = 224,582,773.53/18,583.64
  6. Step 6: Final answer
    x = 12,084.97

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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.