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Finding the Fourth Proportional to 18,469.24, 27,702.90 and 5,989.08

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Solution

The fourth proportional to 18,469.24, 27,702.90 and 5,989.08 is: 8,983.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,469.24 : 27,702.90 = 5,989.08 : x
  2. Step 2: Convert to fraction form
    18,469.24/27,702.90 = 5,989.08/x
  3. Step 3: Cross multiply
    18,469.24x = 27,702.90 × 5,989.08
  4. Step 4: Simplify right side
    18,469.24x = 165,914,884.33
  5. Step 5: Solve for x
    x = 165,914,884.33/18,469.24
  6. Step 6: Final answer
    x = 8,983.31

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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.