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Finding the Fourth Proportional to 8,578.88, 11,840.39 and 6,227.86

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Solution

The fourth proportional to 8,578.88, 11,840.39 and 6,227.86 is: 8,595.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578.88 : 11,840.39 = 6,227.86 : x
  2. Step 2: Convert to fraction form
    8,578.88/11,840.39 = 6,227.86/x
  3. Step 3: Cross multiply
    8,578.88x = 11,840.39 × 6,227.86
  4. Step 4: Simplify right side
    8,578.88x = 73,740,253.88
  5. Step 5: Solve for x
    x = 73,740,253.88/8,578.88
  6. Step 6: Final answer
    x = 8,595.55

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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.