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Finding the Fourth Proportional to 26,728.92, 40,093.92 and 11,146.68

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Solution

The fourth proportional to 26,728.92, 40,093.92 and 11,146.68 is: 16,720.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,728.92 : 40,093.92 = 11,146.68 : x
  2. Step 2: Convert to fraction form
    26,728.92/40,093.92 = 11,146.68/x
  3. Step 3: Cross multiply
    26,728.92x = 40,093.92 × 11,146.68
  4. Step 4: Simplify right side
    26,728.92x = 446,914,096.19
  5. Step 5: Solve for x
    x = 446,914,096.19/26,728.92
  6. Step 6: Final answer
    x = 16,720.25

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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.