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Finding the Fourth Proportional to 13,806.94, 20,693.13 and 10,873.66

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Solution

The fourth proportional to 13,806.94, 20,693.13 and 10,873.66 is: 16,296.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806.94 : 20,693.13 = 10,873.66 : x
  2. Step 2: Convert to fraction form
    13,806.94/20,693.13 = 10,873.66/x
  3. Step 3: Cross multiply
    13,806.94x = 20,693.13 × 10,873.66
  4. Step 4: Simplify right side
    13,806.94x = 225,010,059.96
  5. Step 5: Solve for x
    x = 225,010,059.96/13,806.94
  6. Step 6: Final answer
    x = 16,296.88

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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.