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Finding the Fourth Proportional to 4,799.86, 7,187.79 and 3,039.55

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Solution

The fourth proportional to 4,799.86, 7,187.79 and 3,039.55 is: 4,551.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,799.86 : 7,187.79 = 3,039.55 : x
  2. Step 2: Convert to fraction form
    4,799.86/7,187.79 = 3,039.55/x
  3. Step 3: Cross multiply
    4,799.86x = 7,187.79 × 3,039.55
  4. Step 4: Simplify right side
    4,799.86x = 21,847,647.09
  5. Step 5: Solve for x
    x = 21,847,647.09/4,799.86
  6. Step 6: Final answer
    x = 4,551.73

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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.