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Finding the Fourth Proportional to 3,698.97, 5,551.41 and 1,945.01

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Solution

The fourth proportional to 3,698.97, 5,551.41 and 1,945.01 is: 2,919.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.97 : 5,551.41 = 1,945.01 : x
  2. Step 2: Convert to fraction form
    3,698.97/5,551.41 = 1,945.01/x
  3. Step 3: Cross multiply
    3,698.97x = 5,551.41 × 1,945.01
  4. Step 4: Simplify right side
    3,698.97x = 10,797,523.32
  5. Step 5: Solve for x
    x = 10,797,523.32/3,698.97
  6. Step 6: Final answer
    x = 2,919.06

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1.5x scale

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.