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Finding the Fourth Proportional to 11,843.66, 16,344.78 and 6,809.51

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Solution

The fourth proportional to 11,843.66, 16,344.78 and 6,809.51 is: 9,397.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,843.66 : 16,344.78 = 6,809.51 : x
  2. Step 2: Convert to fraction form
    11,843.66/16,344.78 = 6,809.51/x
  3. Step 3: Cross multiply
    11,843.66x = 16,344.78 × 6,809.51
  4. Step 4: Simplify right side
    11,843.66x = 111,299,942.86
  5. Step 5: Solve for x
    x = 111,299,942.86/11,843.66
  6. Step 6: Final answer
    x = 9,397.43

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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.