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Finding the Fourth Proportional to 3,893.72, 5,836.22 and 2,045.04

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Solution

The fourth proportional to 3,893.72, 5,836.22 and 2,045.04 is: 3,065.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.72 : 5,836.22 = 2,045.04 : x
  2. Step 2: Convert to fraction form
    3,893.72/5,836.22 = 2,045.04/x
  3. Step 3: Cross multiply
    3,893.72x = 5,836.22 × 2,045.04
  4. Step 4: Simplify right side
    3,893.72x = 11,935,303.35
  5. Step 5: Solve for x
    x = 11,935,303.35/3,893.72
  6. Step 6: Final answer
    x = 3,065.27

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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.