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Finding the Fourth Proportional to 18,229.74, 27,329.79 and 7,692.96

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Solution

The fourth proportional to 18,229.74, 27,329.79 and 7,692.96 is: 11,533.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,229.74 : 27,329.79 = 7,692.96 : x
  2. Step 2: Convert to fraction form
    18,229.74/27,329.79 = 7,692.96/x
  3. Step 3: Cross multiply
    18,229.74x = 27,329.79 × 7,692.96
  4. Step 4: Simplify right side
    18,229.74x = 210,246,981.28
  5. Step 5: Solve for x
    x = 210,246,981.28/18,229.74
  6. Step 6: Final answer
    x = 11,533.19

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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.