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Finding the Fourth Proportional to 6,717.80, 10,080.30 and 2,822.60

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Solution

The fourth proportional to 6,717.80, 10,080.30 and 2,822.60 is: 4,235.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,717.80 : 10,080.30 = 2,822.60 : x
  2. Step 2: Convert to fraction form
    6,717.80/10,080.30 = 2,822.60/x
  3. Step 3: Cross multiply
    6,717.80x = 10,080.30 × 2,822.60
  4. Step 4: Simplify right side
    6,717.80x = 28,452,654.78
  5. Step 5: Solve for x
    x = 28,452,654.78/6,717.80
  6. Step 6: Final answer
    x = 4,235.41

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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.