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Finding the Fourth Proportional to 18,063.70, 27,059.10 and 12,523.30

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Solution

The fourth proportional to 18,063.70, 27,059.10 and 12,523.30 is: 18,759.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,063.70 : 27,059.10 = 12,523.30 : x
  2. Step 2: Convert to fraction form
    18,063.70/27,059.10 = 12,523.30/x
  3. Step 3: Cross multiply
    18,063.70x = 27,059.10 × 12,523.30
  4. Step 4: Simplify right side
    18,063.70x = 338,869,227.03
  5. Step 5: Solve for x
    x = 338,869,227.03/18,063.70
  6. Step 6: Final answer
    x = 18,759.68

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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.