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Finding the Fourth Proportional to 19,892.08, 29,844.04 and 8,206

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Solution

The fourth proportional to 19,892.08, 29,844.04 and 8,206 is: 12,311.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,892.08 : 29,844.04 = 8,206 : x
  2. Step 2: Convert to fraction form
    19,892.08/29,844.04 = 8,206/x
  3. Step 3: Cross multiply
    19,892.08x = 29,844.04 × 8,206
  4. Step 4: Simplify right side
    19,892.08x = 244,900,192.24
  5. Step 5: Solve for x
    x = 244,900,192.24/19,892.08
  6. Step 6: Final answer
    x = 12,311.44

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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.