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Finding the Fourth Proportional to 8,531.68, 12,797.16 and 2,692.48

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Solution

The fourth proportional to 8,531.68, 12,797.16 and 2,692.48 is: 4,038.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.68 : 12,797.16 = 2,692.48 : x
  2. Step 2: Convert to fraction form
    8,531.68/12,797.16 = 2,692.48/x
  3. Step 3: Cross multiply
    8,531.68x = 12,797.16 × 2,692.48
  4. Step 4: Simplify right side
    8,531.68x = 34,456,097.36
  5. Step 5: Solve for x
    x = 34,456,097.36/8,531.68
  6. Step 6: Final answer
    x = 4,038.61

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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.