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Finding the Fourth Proportional to 8,993.73, 13,490.56 and 2,419.91

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Solution

The fourth proportional to 8,993.73, 13,490.56 and 2,419.91 is: 3,629.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,993.73 : 13,490.56 = 2,419.91 : x
  2. Step 2: Convert to fraction form
    8,993.73/13,490.56 = 2,419.91/x
  3. Step 3: Cross multiply
    8,993.73x = 13,490.56 × 2,419.91
  4. Step 4: Simplify right side
    8,993.73x = 32,645,941.05
  5. Step 5: Solve for x
    x = 32,645,941.05/8,993.73
  6. Step 6: Final answer
    x = 3,629.86

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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.