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Finding the Fourth Proportional to 18,344.40, 27,516.60 and 5,196.60

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Solution

The fourth proportional to 18,344.40, 27,516.60 and 5,196.60 is: 7,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,344.40 : 27,516.60 = 5,196.60 : x
  2. Step 2: Convert to fraction form
    18,344.40/27,516.60 = 5,196.60/x
  3. Step 3: Cross multiply
    18,344.40x = 27,516.60 × 5,196.60
  4. Step 4: Simplify right side
    18,344.40x = 142,992,763.56
  5. Step 5: Solve for x
    x = 142,992,763.56/18,344.40
  6. Step 6: Final answer
    x = 7,794.90

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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.