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Finding the Fourth Proportional to 8,560.68, 12,836.16 and 5,100.36

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Solution

The fourth proportional to 8,560.68, 12,836.16 and 5,100.36 is: 7,647.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560.68 : 12,836.16 = 5,100.36 : x
  2. Step 2: Convert to fraction form
    8,560.68/12,836.16 = 5,100.36/x
  3. Step 3: Cross multiply
    8,560.68x = 12,836.16 × 5,100.36
  4. Step 4: Simplify right side
    8,560.68x = 65,469,037.02
  5. Step 5: Solve for x
    x = 65,469,037.02/8,560.68
  6. Step 6: Final answer
    x = 7,647.64

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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.