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Finding the Fourth Proportional to 2,676.28, 4,012.04 and 1,739.64

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Solution

The fourth proportional to 2,676.28, 4,012.04 and 1,739.64 is: 2,607.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,676.28 : 4,012.04 = 1,739.64 : x
  2. Step 2: Convert to fraction form
    2,676.28/4,012.04 = 1,739.64/x
  3. Step 3: Cross multiply
    2,676.28x = 4,012.04 × 1,739.64
  4. Step 4: Simplify right side
    2,676.28x = 6,979,505.27
  5. Step 5: Solve for x
    x = 6,979,505.27/2,676.28
  6. Step 6: Final answer
    x = 2,607.91

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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.