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Finding the Fourth Proportional to 8,269.43, 12,404.54 and 2,722.65

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Solution

The fourth proportional to 8,269.43, 12,404.54 and 2,722.65 is: 4,084.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,269.43 : 12,404.54 = 2,722.65 : x
  2. Step 2: Convert to fraction form
    8,269.43/12,404.54 = 2,722.65/x
  3. Step 3: Cross multiply
    8,269.43x = 12,404.54 × 2,722.65
  4. Step 4: Simplify right side
    8,269.43x = 33,773,181.12
  5. Step 5: Solve for x
    x = 33,773,181.12/8,269.43
  6. Step 6: Final answer
    x = 4,084.10

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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.