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Finding the Fourth Proportional to 4,986.22, 7,477.03 and 1,474.97

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Solution

The fourth proportional to 4,986.22, 7,477.03 and 1,474.97 is: 2,211.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.22 : 7,477.03 = 1,474.97 : x
  2. Step 2: Convert to fraction form
    4,986.22/7,477.03 = 1,474.97/x
  3. Step 3: Cross multiply
    4,986.22x = 7,477.03 × 1,474.97
  4. Step 4: Simplify right side
    4,986.22x = 11,028,416.12
  5. Step 5: Solve for x
    x = 11,028,416.12/4,986.22
  6. Step 6: Final answer
    x = 2,211.78

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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.