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Finding the Fourth Proportional to 68,467.26, 102,693.87 and 18,545.34

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Solution

The fourth proportional to 68,467.26, 102,693.87 and 18,545.34 is: 27,816.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,467.26 : 102,693.87 = 18,545.34 : x
  2. Step 2: Convert to fraction form
    68,467.26/102,693.87 = 18,545.34/x
  3. Step 3: Cross multiply
    68,467.26x = 102,693.87 × 18,545.34
  4. Step 4: Simplify right side
    68,467.26x = 1,904,492,735.07
  5. Step 5: Solve for x
    x = 1,904,492,735.07/68,467.26
  6. Step 6: Final answer
    x = 27,816.11

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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.