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Finding the Fourth Proportional to 8,568.74, 11,822.17 and 4,791.39

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Solution

The fourth proportional to 8,568.74, 11,822.17 and 4,791.39 is: 6,610.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,568.74 : 11,822.17 = 4,791.39 : x
  2. Step 2: Convert to fraction form
    8,568.74/11,822.17 = 4,791.39/x
  3. Step 3: Cross multiply
    8,568.74x = 11,822.17 × 4,791.39
  4. Step 4: Simplify right side
    8,568.74x = 56,644,668.45
  5. Step 5: Solve for x
    x = 56,644,668.45/8,568.74
  6. Step 6: Final answer
    x = 6,610.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.