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Finding the Fourth Proportional to 11,408.50, 15,744.07 and 6,372.93

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Solution

The fourth proportional to 11,408.50, 15,744.07 and 6,372.93 is: 8,794.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,408.50 : 15,744.07 = 6,372.93 : x
  2. Step 2: Convert to fraction form
    11,408.50/15,744.07 = 6,372.93/x
  3. Step 3: Cross multiply
    11,408.50x = 15,744.07 × 6,372.93
  4. Step 4: Simplify right side
    11,408.50x = 100,335,856.03
  5. Step 5: Solve for x
    x = 100,335,856.03/11,408.50
  6. Step 6: Final answer
    x = 8,794.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.