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Finding the Fourth Proportional to 18,453.30, 27,674.55 and 6,605.70

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Solution

The fourth proportional to 18,453.30, 27,674.55 and 6,605.70 is: 9,906.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453.30 : 27,674.55 = 6,605.70 : x
  2. Step 2: Convert to fraction form
    18,453.30/27,674.55 = 6,605.70/x
  3. Step 3: Cross multiply
    18,453.30x = 27,674.55 × 6,605.70
  4. Step 4: Simplify right side
    18,453.30x = 182,809,774.94
  5. Step 5: Solve for x
    x = 182,809,774.94/18,453.30
  6. Step 6: Final answer
    x = 9,906.62

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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.