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Finding the Fourth Proportional to 4,965.73, 7,449.40 and 1,679.02

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Solution

The fourth proportional to 4,965.73, 7,449.40 and 1,679.02 is: 2,518.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,965.73 : 7,449.40 = 1,679.02 : x
  2. Step 2: Convert to fraction form
    4,965.73/7,449.40 = 1,679.02/x
  3. Step 3: Cross multiply
    4,965.73x = 7,449.40 × 1,679.02
  4. Step 4: Simplify right side
    4,965.73x = 12,507,691.59
  5. Step 5: Solve for x
    x = 12,507,691.59/4,965.73
  6. Step 6: Final answer
    x = 2,518.80

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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.