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Finding the Fourth Proportional to 5,755.91, 8,631.12 and 2,634.98

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Solution

The fourth proportional to 5,755.91, 8,631.12 and 2,634.98 is: 3,951.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,755.91 : 8,631.12 = 2,634.98 : x
  2. Step 2: Convert to fraction form
    5,755.91/8,631.12 = 2,634.98/x
  3. Step 3: Cross multiply
    5,755.91x = 8,631.12 × 2,634.98
  4. Step 4: Simplify right side
    5,755.91x = 22,742,828.58
  5. Step 5: Solve for x
    x = 22,742,828.58/5,755.91
  6. Step 6: Final answer
    x = 3,951.21

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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.