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Finding the Fourth Proportional to 18,404.10, 27,620.55 and 8,544.60

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Solution

The fourth proportional to 18,404.10, 27,620.55 and 8,544.60 is: 12,823.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,404.10 : 27,620.55 = 8,544.60 : x
  2. Step 2: Convert to fraction form
    18,404.10/27,620.55 = 8,544.60/x
  3. Step 3: Cross multiply
    18,404.10x = 27,620.55 × 8,544.60
  4. Step 4: Simplify right side
    18,404.10x = 236,006,551.53
  5. Step 5: Solve for x
    x = 236,006,551.53/18,404.10
  6. Step 6: Final answer
    x = 12,823.59

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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.