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Finding the Fourth Proportional to 26,876.20, 40,299.90 and 11,276.20

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Solution

The fourth proportional to 26,876.20, 40,299.90 and 11,276.20 is: 16,908.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,876.20 : 40,299.90 = 11,276.20 : x
  2. Step 2: Convert to fraction form
    26,876.20/40,299.90 = 11,276.20/x
  3. Step 3: Cross multiply
    26,876.20x = 40,299.90 × 11,276.20
  4. Step 4: Simplify right side
    26,876.20x = 454,429,732.38
  5. Step 5: Solve for x
    x = 454,429,732.38/26,876.20
  6. Step 6: Final answer
    x = 16,908.26

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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.