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Finding the Fourth Proportional to 8,716.69, 13,076.88 and 2,873.17

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Solution

The fourth proportional to 8,716.69, 13,076.88 and 2,873.17 is: 4,310.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.69 : 13,076.88 = 2,873.17 : x
  2. Step 2: Convert to fraction form
    8,716.69/13,076.88 = 2,873.17/x
  3. Step 3: Cross multiply
    8,716.69x = 13,076.88 × 2,873.17
  4. Step 4: Simplify right side
    8,716.69x = 37,572,099.31
  5. Step 5: Solve for x
    x = 37,572,099.31/8,716.69
  6. Step 6: Final answer
    x = 4,310.36

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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.