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Finding the Fourth Proportional to 18,192.78, 27,268.02 and 8,333.10

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Solution

The fourth proportional to 18,192.78, 27,268.02 and 8,333.10 is: 12,489.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,192.78 : 27,268.02 = 8,333.10 : x
  2. Step 2: Convert to fraction form
    18,192.78/27,268.02 = 8,333.10/x
  3. Step 3: Cross multiply
    18,192.78x = 27,268.02 × 8,333.10
  4. Step 4: Simplify right side
    18,192.78x = 227,227,137.46
  5. Step 5: Solve for x
    x = 227,227,137.46/18,192.78
  6. Step 6: Final answer
    x = 12,489.96

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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.