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Finding the Fourth Proportional to 8,828.75, 13,243.17 and 2,672.75

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Solution

The fourth proportional to 8,828.75, 13,243.17 and 2,672.75 is: 4,009.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,828.75 : 13,243.17 = 2,672.75 : x
  2. Step 2: Convert to fraction form
    8,828.75/13,243.17 = 2,672.75/x
  3. Step 3: Cross multiply
    8,828.75x = 13,243.17 × 2,672.75
  4. Step 4: Simplify right side
    8,828.75x = 35,395,682.62
  5. Step 5: Solve for x
    x = 35,395,682.62/8,828.75
  6. Step 6: Final answer
    x = 4,009.14

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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.