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Finding the Fourth Proportional to 5,676.56, 8,515.20 and 2,754.08

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Solution

The fourth proportional to 5,676.56, 8,515.20 and 2,754.08 is: 4,131.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,676.56 : 8,515.20 = 2,754.08 : x
  2. Step 2: Convert to fraction form
    5,676.56/8,515.20 = 2,754.08/x
  3. Step 3: Cross multiply
    5,676.56x = 8,515.20 × 2,754.08
  4. Step 4: Simplify right side
    5,676.56x = 23,451,542.02
  5. Step 5: Solve for x
    x = 23,451,542.02/5,676.56
  6. Step 6: Final answer
    x = 4,131.29

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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.