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Finding the Fourth Proportional to 18,382.40, 27,573.72 and 12,524.48

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Solution

The fourth proportional to 18,382.40, 27,573.72 and 12,524.48 is: 18,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,382.40 : 27,573.72 = 12,524.48 : x
  2. Step 2: Convert to fraction form
    18,382.40/27,573.72 = 12,524.48/x
  3. Step 3: Cross multiply
    18,382.40x = 27,573.72 × 12,524.48
  4. Step 4: Simplify right side
    18,382.40x = 345,346,504.67
  5. Step 5: Solve for x
    x = 345,346,504.67/18,382.40
  6. Step 6: Final answer
    x = 18,786.80

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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.