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Finding the Fourth Proportional to 8,793.97, 12,135.32 and 5,259.13

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Solution

The fourth proportional to 8,793.97, 12,135.32 and 5,259.13 is: 7,257.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,793.97 : 12,135.32 = 5,259.13 : x
  2. Step 2: Convert to fraction form
    8,793.97/12,135.32 = 5,259.13/x
  3. Step 3: Cross multiply
    8,793.97x = 12,135.32 × 5,259.13
  4. Step 4: Simplify right side
    8,793.97x = 63,821,188.56
  5. Step 5: Solve for x
    x = 63,821,188.56/8,793.97
  6. Step 6: Final answer
    x = 7,257.38

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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.