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Finding the Fourth Proportional to 14,754.78, 22,135.38 and 5,520.78

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Solution

The fourth proportional to 14,754.78, 22,135.38 and 5,520.78 is: 8,282.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,754.78 : 22,135.38 = 5,520.78 : x
  2. Step 2: Convert to fraction form
    14,754.78/22,135.38 = 5,520.78/x
  3. Step 3: Cross multiply
    14,754.78x = 22,135.38 × 5,520.78
  4. Step 4: Simplify right side
    14,754.78x = 122,204,563.20
  5. Step 5: Solve for x
    x = 122,204,563.20/14,754.78
  6. Step 6: Final answer
    x = 8,282.37

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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.