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Finding the Fourth Proportional to 11,792.66, 16,272.24 and 9,408.56

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Solution

The fourth proportional to 11,792.66, 16,272.24 and 9,408.56 is: 12,982.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,792.66 : 16,272.24 = 9,408.56 : x
  2. Step 2: Convert to fraction form
    11,792.66/16,272.24 = 9,408.56/x
  3. Step 3: Cross multiply
    11,792.66x = 16,272.24 × 9,408.56
  4. Step 4: Simplify right side
    11,792.66x = 153,098,346.37
  5. Step 5: Solve for x
    x = 153,098,346.37/11,792.66
  6. Step 6: Final answer
    x = 12,982.51

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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.