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Finding the Fourth Proportional to 11,832.54, 17,736.21 and 8,901.78

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Solution

The fourth proportional to 11,832.54, 17,736.21 and 8,901.78 is: 13,343.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,832.54 : 17,736.21 = 8,901.78 : x
  2. Step 2: Convert to fraction form
    11,832.54/17,736.21 = 8,901.78/x
  3. Step 3: Cross multiply
    11,832.54x = 17,736.21 × 8,901.78
  4. Step 4: Simplify right side
    11,832.54x = 157,883,839.45
  5. Step 5: Solve for x
    x = 157,883,839.45/11,832.54
  6. Step 6: Final answer
    x = 13,343.19

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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.