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Finding the Fourth Proportional to 3,791.56, 5,674.86 and 2,676.16

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Solution

The fourth proportional to 3,791.56, 5,674.86 and 2,676.16 is: 4,005.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.56 : 5,674.86 = 2,676.16 : x
  2. Step 2: Convert to fraction form
    3,791.56/5,674.86 = 2,676.16/x
  3. Step 3: Cross multiply
    3,791.56x = 5,674.86 × 2,676.16
  4. Step 4: Simplify right side
    3,791.56x = 15,186,833.34
  5. Step 5: Solve for x
    x = 15,186,833.34/3,791.56
  6. Step 6: Final answer
    x = 4,005.43

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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.