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Finding the Fourth Proportional to 8,589.73, 12,888.26 and 3,661.69

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Solution

The fourth proportional to 8,589.73, 12,888.26 and 3,661.69 is: 5,494.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.73 : 12,888.26 = 3,661.69 : x
  2. Step 2: Convert to fraction form
    8,589.73/12,888.26 = 3,661.69/x
  3. Step 3: Cross multiply
    8,589.73x = 12,888.26 × 3,661.69
  4. Step 4: Simplify right side
    8,589.73x = 47,192,730.01
  5. Step 5: Solve for x
    x = 47,192,730.01/8,589.73
  6. Step 6: Final answer
    x = 5,494.09

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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.