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Finding the Fourth Proportional to 18,393.28, 27,589.76 and 7,299.52

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Solution

The fourth proportional to 18,393.28, 27,589.76 and 7,299.52 is: 10,949.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,393.28 : 27,589.76 = 7,299.52 : x
  2. Step 2: Convert to fraction form
    18,393.28/27,589.76 = 7,299.52/x
  3. Step 3: Cross multiply
    18,393.28x = 27,589.76 × 7,299.52
  4. Step 4: Simplify right side
    18,393.28x = 201,392,004.92
  5. Step 5: Solve for x
    x = 201,392,004.92/18,393.28
  6. Step 6: Final answer
    x = 10,949.22

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Double scale
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Similar ratio
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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.