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Finding the Fourth Proportional to 3,719.58, 5,578.92 and 1,773.15

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Solution

The fourth proportional to 3,719.58, 5,578.92 and 1,773.15 is: 2,659.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.58 : 5,578.92 = 1,773.15 : x
  2. Step 2: Convert to fraction form
    3,719.58/5,578.92 = 1,773.15/x
  3. Step 3: Cross multiply
    3,719.58x = 5,578.92 × 1,773.15
  4. Step 4: Simplify right side
    3,719.58x = 9,892,262.00
  5. Step 5: Solve for x
    x = 9,892,262.00/3,719.58
  6. Step 6: Final answer
    x = 2,659.51

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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.