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Finding the Fourth Proportional to 5,589.62, 7,713.31 and 3,199.61

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Solution

The fourth proportional to 5,589.62, 7,713.31 and 3,199.61 is: 4,415.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,589.62 : 7,713.31 = 3,199.61 : x
  2. Step 2: Convert to fraction form
    5,589.62/7,713.31 = 3,199.61/x
  3. Step 3: Cross multiply
    5,589.62x = 7,713.31 × 3,199.61
  4. Step 4: Simplify right side
    5,589.62x = 24,679,588.40
  5. Step 5: Solve for x
    x = 24,679,588.40/5,589.62
  6. Step 6: Final answer
    x = 4,415.25

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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.