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Finding the Fourth Proportional to 5,679.78, 8,524.95 and 2,908.44

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Solution

The fourth proportional to 5,679.78, 8,524.95 and 2,908.44 is: 4,365.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.78 : 8,524.95 = 2,908.44 : x
  2. Step 2: Convert to fraction form
    5,679.78/8,524.95 = 2,908.44/x
  3. Step 3: Cross multiply
    5,679.78x = 8,524.95 × 2,908.44
  4. Step 4: Simplify right side
    5,679.78x = 24,794,305.58
  5. Step 5: Solve for x
    x = 24,794,305.58/5,679.78
  6. Step 6: Final answer
    x = 4,365.36

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1.5x scale

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.