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Finding the Fourth Proportional to 8,825.76, 13,239.09 and 3,895.44

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Solution

The fourth proportional to 8,825.76, 13,239.09 and 3,895.44 is: 5,843.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,825.76 : 13,239.09 = 3,895.44 : x
  2. Step 2: Convert to fraction form
    8,825.76/13,239.09 = 3,895.44/x
  3. Step 3: Cross multiply
    8,825.76x = 13,239.09 × 3,895.44
  4. Step 4: Simplify right side
    8,825.76x = 51,572,080.75
  5. Step 5: Solve for x
    x = 51,572,080.75/8,825.76
  6. Step 6: Final answer
    x = 5,843.36

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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.