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Finding the Fourth Proportional to 8,591.43, 12,878.15 and 3,596.67

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Solution

The fourth proportional to 8,591.43, 12,878.15 and 3,596.67 is: 5,391.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,591.43 : 12,878.15 = 3,596.67 : x
  2. Step 2: Convert to fraction form
    8,591.43/12,878.15 = 3,596.67/x
  3. Step 3: Cross multiply
    8,591.43x = 12,878.15 × 3,596.67
  4. Step 4: Simplify right side
    8,591.43x = 46,318,391.37
  5. Step 5: Solve for x
    x = 46,318,391.37/8,591.43
  6. Step 6: Final answer
    x = 5,391.23

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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.