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Finding the Fourth Proportional to 18,376.67, 27,530.22 and 10,857.74

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Solution

The fourth proportional to 18,376.67, 27,530.22 and 10,857.74 is: 16,266.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,376.67 : 27,530.22 = 10,857.74 : x
  2. Step 2: Convert to fraction form
    18,376.67/27,530.22 = 10,857.74/x
  3. Step 3: Cross multiply
    18,376.67x = 27,530.22 × 10,857.74
  4. Step 4: Simplify right side
    18,376.67x = 298,916,039.73
  5. Step 5: Solve for x
    x = 298,916,039.73/18,376.67
  6. Step 6: Final answer
    x = 16,266.06

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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.