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Finding the Fourth Proportional to 5,789.61, 8,686.58 and 2,671.11

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Solution

The fourth proportional to 5,789.61, 8,686.58 and 2,671.11 is: 4,007.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,789.61 : 8,686.58 = 2,671.11 : x
  2. Step 2: Convert to fraction form
    5,789.61/8,686.58 = 2,671.11/x
  3. Step 3: Cross multiply
    5,789.61x = 8,686.58 × 2,671.11
  4. Step 4: Simplify right side
    5,789.61x = 23,202,797.35
  5. Step 5: Solve for x
    x = 23,202,797.35/5,789.61
  6. Step 6: Final answer
    x = 4,007.66

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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.