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Finding the Fourth Proportional to 18,833.88, 28,251 and 4,793.93

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Solution

The fourth proportional to 18,833.88, 28,251 and 4,793.93 is: 7,190.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,833.88 : 28,251 = 4,793.93 : x
  2. Step 2: Convert to fraction form
    18,833.88/28,251 = 4,793.93/x
  3. Step 3: Cross multiply
    18,833.88x = 28,251 × 4,793.93
  4. Step 4: Simplify right side
    18,833.88x = 135,433,175.18
  5. Step 5: Solve for x
    x = 135,433,175.18/18,833.88
  6. Step 6: Final answer
    x = 7,190.93

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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.