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Finding the Fourth Proportional to 4,984.87, 7,477.62 and 2,791.93

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Solution

The fourth proportional to 4,984.87, 7,477.62 and 2,791.93 is: 4,188.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984.87 : 7,477.62 = 2,791.93 : x
  2. Step 2: Convert to fraction form
    4,984.87/7,477.62 = 2,791.93/x
  3. Step 3: Cross multiply
    4,984.87x = 7,477.62 × 2,791.93
  4. Step 4: Simplify right side
    4,984.87x = 20,876,991.61
  5. Step 5: Solve for x
    x = 20,876,991.61/4,984.87
  6. Step 6: Final answer
    x = 4,188.07

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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.