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Finding the Fourth Proportional to 26,800.39, 40,202.52 and 7,078.69

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Solution

The fourth proportional to 26,800.39, 40,202.52 and 7,078.69 is: 10,618.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,800.39 : 40,202.52 = 7,078.69 : x
  2. Step 2: Convert to fraction form
    26,800.39/40,202.52 = 7,078.69/x
  3. Step 3: Cross multiply
    26,800.39x = 40,202.52 × 7,078.69
  4. Step 4: Simplify right side
    26,800.39x = 284,581,049.25
  5. Step 5: Solve for x
    x = 284,581,049.25/26,800.39
  6. Step 6: Final answer
    x = 10,618.54

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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.