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Finding the Fourth Proportional to 11,354.17, 17,009.11 and 6,408.85

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Solution

The fourth proportional to 11,354.17, 17,009.11 and 6,408.85 is: 9,600.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,354.17 : 17,009.11 = 6,408.85 : x
  2. Step 2: Convert to fraction form
    11,354.17/17,009.11 = 6,408.85/x
  3. Step 3: Cross multiply
    11,354.17x = 17,009.11 × 6,408.85
  4. Step 4: Simplify right side
    11,354.17x = 109,008,834.62
  5. Step 5: Solve for x
    x = 109,008,834.62/11,354.17
  6. Step 6: Final answer
    x = 9,600.78

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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.