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Finding the Fourth Proportional to 12,894.56, 17,794.38 and 11,836.62

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Solution

The fourth proportional to 12,894.56, 17,794.38 and 11,836.62 is: 16,334.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,894.56 : 17,794.38 = 11,836.62 : x
  2. Step 2: Convert to fraction form
    12,894.56/17,794.38 = 11,836.62/x
  3. Step 3: Cross multiply
    12,894.56x = 17,794.38 × 11,836.62
  4. Step 4: Simplify right side
    12,894.56x = 210,625,314.20
  5. Step 5: Solve for x
    x = 210,625,314.20/12,894.56
  6. Step 6: Final answer
    x = 16,334.43

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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.