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Finding the Fourth Proportional to 16,696.65, 23,040.50 and 9,141.54

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Solution

The fourth proportional to 16,696.65, 23,040.50 and 9,141.54 is: 12,614.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,696.65 : 23,040.50 = 9,141.54 : x
  2. Step 2: Convert to fraction form
    16,696.65/23,040.50 = 9,141.54/x
  3. Step 3: Cross multiply
    16,696.65x = 23,040.50 × 9,141.54
  4. Step 4: Simplify right side
    16,696.65x = 210,625,652.37
  5. Step 5: Solve for x
    x = 210,625,652.37/16,696.65
  6. Step 6: Final answer
    x = 12,614.85

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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.