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Finding the Fourth Proportional to 2,561.94, 3,835.04 and 1,868.44

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Solution

The fourth proportional to 2,561.94, 3,835.04 and 1,868.44 is: 2,796.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,561.94 : 3,835.04 = 1,868.44 : x
  2. Step 2: Convert to fraction form
    2,561.94/3,835.04 = 1,868.44/x
  3. Step 3: Cross multiply
    2,561.94x = 3,835.04 × 1,868.44
  4. Step 4: Simplify right side
    2,561.94x = 7,165,542.14
  5. Step 5: Solve for x
    x = 7,165,542.14/2,561.94
  6. Step 6: Final answer
    x = 2,796.92

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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.