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Finding the Fourth Proportional to 3,676.88, 5,516.13 and 1,368.38

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Solution

The fourth proportional to 3,676.88, 5,516.13 and 1,368.38 is: 2,052.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.88 : 5,516.13 = 1,368.38 : x
  2. Step 2: Convert to fraction form
    3,676.88/5,516.13 = 1,368.38/x
  3. Step 3: Cross multiply
    3,676.88x = 5,516.13 × 1,368.38
  4. Step 4: Simplify right side
    3,676.88x = 7,548,134.39
  5. Step 5: Solve for x
    x = 7,548,134.39/3,676.88
  6. Step 6: Final answer
    x = 2,052.87

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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.