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Finding the Fourth Proportional to 26,906.20, 40,344.90 and 11,306.20

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Solution

The fourth proportional to 26,906.20, 40,344.90 and 11,306.20 is: 16,953.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,906.20 : 40,344.90 = 11,306.20 : x
  2. Step 2: Convert to fraction form
    26,906.20/40,344.90 = 11,306.20/x
  3. Step 3: Cross multiply
    26,906.20x = 40,344.90 × 11,306.20
  4. Step 4: Simplify right side
    26,906.20x = 456,147,508.38
  5. Step 5: Solve for x
    x = 456,147,508.38/26,906.20
  6. Step 6: Final answer
    x = 16,953.25

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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.