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Finding the Fourth Proportional to 17,830.20, 26,745.30 and 9,082.20

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Solution

The fourth proportional to 17,830.20, 26,745.30 and 9,082.20 is: 13,623.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,830.20 : 26,745.30 = 9,082.20 : x
  2. Step 2: Convert to fraction form
    17,830.20/26,745.30 = 9,082.20/x
  3. Step 3: Cross multiply
    17,830.20x = 26,745.30 × 9,082.20
  4. Step 4: Simplify right side
    17,830.20x = 242,906,163.66
  5. Step 5: Solve for x
    x = 242,906,163.66/17,830.20
  6. Step 6: Final answer
    x = 13,623.30

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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.