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Finding the Fourth Proportional to 28,868.86, 43,304.97 and 8,093.98

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Solution

The fourth proportional to 28,868.86, 43,304.97 and 8,093.98 is: 12,141.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,868.86 : 43,304.97 = 8,093.98 : x
  2. Step 2: Convert to fraction form
    28,868.86/43,304.97 = 8,093.98/x
  3. Step 3: Cross multiply
    28,868.86x = 43,304.97 × 8,093.98
  4. Step 4: Simplify right side
    28,868.86x = 350,509,561.08
  5. Step 5: Solve for x
    x = 350,509,561.08/28,868.86
  6. Step 6: Final answer
    x = 12,141.44

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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.