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Finding the Fourth Proportional to 15,793.31, 23,696.89 and 7,479.27

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Solution

The fourth proportional to 15,793.31, 23,696.89 and 7,479.27 is: 11,222.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,793.31 : 23,696.89 = 7,479.27 : x
  2. Step 2: Convert to fraction form
    15,793.31/23,696.89 = 7,479.27/x
  3. Step 3: Cross multiply
    15,793.31x = 23,696.89 × 7,479.27
  4. Step 4: Simplify right side
    15,793.31x = 177,235,419.77
  5. Step 5: Solve for x
    x = 177,235,419.77/15,793.31
  6. Step 6: Final answer
    x = 11,222.18

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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.