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Finding the Fourth Proportional to 8,755.62, 13,104.68 and 6,664.34

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Solution

The fourth proportional to 8,755.62, 13,104.68 and 6,664.34 is: 9,974.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.62 : 13,104.68 = 6,664.34 : x
  2. Step 2: Convert to fraction form
    8,755.62/13,104.68 = 6,664.34/x
  3. Step 3: Cross multiply
    8,755.62x = 13,104.68 × 6,664.34
  4. Step 4: Simplify right side
    8,755.62x = 87,333,944.27
  5. Step 5: Solve for x
    x = 87,333,944.27/8,755.62
  6. Step 6: Final answer
    x = 9,974.62

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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.