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Finding the Fourth Proportional to 20,227.62, 27,914.50 and 11,274.17

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Solution

The fourth proportional to 20,227.62, 27,914.50 and 11,274.17 is: 15,558.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227.62 : 27,914.50 = 11,274.17 : x
  2. Step 2: Convert to fraction form
    20,227.62/27,914.50 = 11,274.17/x
  3. Step 3: Cross multiply
    20,227.62x = 27,914.50 × 11,274.17
  4. Step 4: Simplify right side
    20,227.62x = 314,712,936.06
  5. Step 5: Solve for x
    x = 314,712,936.06/20,227.62
  6. Step 6: Final answer
    x = 15,558.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.