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Finding the Fourth Proportional to 2,858.52, 3,944.72 and 1,616.52

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Solution

The fourth proportional to 2,858.52, 3,944.72 and 1,616.52 is: 2,230.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.52 : 3,944.72 = 1,616.52 : x
  2. Step 2: Convert to fraction form
    2,858.52/3,944.72 = 1,616.52/x
  3. Step 3: Cross multiply
    2,858.52x = 3,944.72 × 1,616.52
  4. Step 4: Simplify right side
    2,858.52x = 6,376,718.77
  5. Step 5: Solve for x
    x = 6,376,718.77/2,858.52
  6. Step 6: Final answer
    x = 2,230.78

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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.