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Finding the Fourth Proportional to 8,568.71, 12,851.77 and 2,947.24

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Solution

The fourth proportional to 8,568.71, 12,851.77 and 2,947.24 is: 4,420.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,568.71 : 12,851.77 = 2,947.24 : x
  2. Step 2: Convert to fraction form
    8,568.71/12,851.77 = 2,947.24/x
  3. Step 3: Cross multiply
    8,568.71x = 12,851.77 × 2,947.24
  4. Step 4: Simplify right side
    8,568.71x = 37,877,221.73
  5. Step 5: Solve for x
    x = 37,877,221.73/8,568.71
  6. Step 6: Final answer
    x = 4,420.41

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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.