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Finding the Fourth Proportional to 26,855.92, 40,283.90 and 10,212.11

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Solution

The fourth proportional to 26,855.92, 40,283.90 and 10,212.11 is: 15,318.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,855.92 : 40,283.90 = 10,212.11 : x
  2. Step 2: Convert to fraction form
    26,855.92/40,283.90 = 10,212.11/x
  3. Step 3: Cross multiply
    26,855.92x = 40,283.90 × 10,212.11
  4. Step 4: Simplify right side
    26,855.92x = 411,383,618.03
  5. Step 5: Solve for x
    x = 411,383,618.03/26,855.92
  6. Step 6: Final answer
    x = 15,318.17

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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.