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Finding the Fourth Proportional to 8,449.75, 12,666.12 and 3,522.12

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Solution

The fourth proportional to 8,449.75, 12,666.12 and 3,522.12 is: 5,279.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,449.75 : 12,666.12 = 3,522.12 : x
  2. Step 2: Convert to fraction form
    8,449.75/12,666.12 = 3,522.12/x
  3. Step 3: Cross multiply
    8,449.75x = 12,666.12 × 3,522.12
  4. Step 4: Simplify right side
    8,449.75x = 44,611,594.57
  5. Step 5: Solve for x
    x = 44,611,594.57/8,449.75
  6. Step 6: Final answer
    x = 5,279.63

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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.