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Finding the Fourth Proportional to 3,103.97, 4,656.64 and 1,719.33

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Solution

The fourth proportional to 3,103.97, 4,656.64 and 1,719.33 is: 2,579.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.97 : 4,656.64 = 1,719.33 : x
  2. Step 2: Convert to fraction form
    3,103.97/4,656.64 = 1,719.33/x
  3. Step 3: Cross multiply
    3,103.97x = 4,656.64 × 1,719.33
  4. Step 4: Simplify right side
    3,103.97x = 8,006,282.31
  5. Step 5: Solve for x
    x = 8,006,282.31/3,103.97
  6. Step 6: Final answer
    x = 2,579.37

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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.