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Finding the Fourth Proportional to 18,273.70, 27,427.74 and 17,274.97

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Solution

The fourth proportional to 18,273.70, 27,427.74 and 17,274.97 is: 25,928.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,273.70 : 27,427.74 = 17,274.97 : x
  2. Step 2: Convert to fraction form
    18,273.70/27,427.74 = 17,274.97/x
  3. Step 3: Cross multiply
    18,273.70x = 27,427.74 × 17,274.97
  4. Step 4: Simplify right side
    18,273.70x = 473,813,385.67
  5. Step 5: Solve for x
    x = 473,813,385.67/18,273.70
  6. Step 6: Final answer
    x = 25,928.71

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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.