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Finding the Fourth Proportional to 18,589.08, 27,880.32 and 8,053.20

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Solution

The fourth proportional to 18,589.08, 27,880.32 and 8,053.20 is: 12,078.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,589.08 : 27,880.32 = 8,053.20 : x
  2. Step 2: Convert to fraction form
    18,589.08/27,880.32 = 8,053.20/x
  3. Step 3: Cross multiply
    18,589.08x = 27,880.32 × 8,053.20
  4. Step 4: Simplify right side
    18,589.08x = 224,525,793.02
  5. Step 5: Solve for x
    x = 224,525,793.02/18,589.08
  6. Step 6: Final answer
    x = 12,078.37

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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.