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Finding the Fourth Proportional to 2,833.99, 3,908.81 and 1,889.33

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Solution

The fourth proportional to 2,833.99, 3,908.81 and 1,889.33 is: 2,605.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,833.99 : 3,908.81 = 1,889.33 : x
  2. Step 2: Convert to fraction form
    2,833.99/3,908.81 = 1,889.33/x
  3. Step 3: Cross multiply
    2,833.99x = 3,908.81 × 1,889.33
  4. Step 4: Simplify right side
    2,833.99x = 7,385,006.55
  5. Step 5: Solve for x
    x = 7,385,006.55/2,833.99
  6. Step 6: Final answer
    x = 2,605.87

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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.