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Finding the Fourth Proportional to 15,361.30, 23,020.30 and 12,227.37

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Solution

The fourth proportional to 15,361.30, 23,020.30 and 12,227.37 is: 18,323.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,361.30 : 23,020.30 = 12,227.37 : x
  2. Step 2: Convert to fraction form
    15,361.30/23,020.30 = 12,227.37/x
  3. Step 3: Cross multiply
    15,361.30x = 23,020.30 × 12,227.37
  4. Step 4: Simplify right side
    15,361.30x = 281,477,725.61
  5. Step 5: Solve for x
    x = 281,477,725.61/15,361.30
  6. Step 6: Final answer
    x = 18,323.82

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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.