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Finding the Fourth Proportional to 3,078.99, 4,249.14 and 1,735.05

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Solution

The fourth proportional to 3,078.99, 4,249.14 and 1,735.05 is: 2,394.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.99 : 4,249.14 = 1,735.05 : x
  2. Step 2: Convert to fraction form
    3,078.99/4,249.14 = 1,735.05/x
  3. Step 3: Cross multiply
    3,078.99x = 4,249.14 × 1,735.05
  4. Step 4: Simplify right side
    3,078.99x = 7,372,470.36
  5. Step 5: Solve for x
    x = 7,372,470.36/3,078.99
  6. Step 6: Final answer
    x = 2,394.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.