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Finding the Fourth Proportional to 8,805.75, 13,208.70 and 2,231.94

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Solution

The fourth proportional to 8,805.75, 13,208.70 and 2,231.94 is: 3,347.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.75 : 13,208.70 = 2,231.94 : x
  2. Step 2: Convert to fraction form
    8,805.75/13,208.70 = 2,231.94/x
  3. Step 3: Cross multiply
    8,805.75x = 13,208.70 × 2,231.94
  4. Step 4: Simplify right side
    8,805.75x = 29,481,025.88
  5. Step 5: Solve for x
    x = 29,481,025.88/8,805.75
  6. Step 6: Final answer
    x = 3,347.93

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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.