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Finding the Fourth Proportional to 18,329.97, 27,499.68 and 8,476.32

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Solution

The fourth proportional to 18,329.97, 27,499.68 and 8,476.32 is: 12,716.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,329.97 : 27,499.68 = 8,476.32 : x
  2. Step 2: Convert to fraction form
    18,329.97/27,499.68 = 8,476.32/x
  3. Step 3: Cross multiply
    18,329.97x = 27,499.68 × 8,476.32
  4. Step 4: Simplify right side
    18,329.97x = 233,096,087.58
  5. Step 5: Solve for x
    x = 233,096,087.58/18,329.97
  6. Step 6: Final answer
    x = 12,716.66

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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.