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Finding the Fourth Proportional to 8,593.39, 12,879.30 and 4,644.48

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Solution

The fourth proportional to 8,593.39, 12,879.30 and 4,644.48 is: 6,960.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,593.39 : 12,879.30 = 4,644.48 : x
  2. Step 2: Convert to fraction form
    8,593.39/12,879.30 = 4,644.48/x
  3. Step 3: Cross multiply
    8,593.39x = 12,879.30 × 4,644.48
  4. Step 4: Simplify right side
    8,593.39x = 59,817,651.26
  5. Step 5: Solve for x
    x = 59,817,651.26/8,593.39
  6. Step 6: Final answer
    x = 6,960.90

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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.