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Finding the Fourth Proportional to 2,558.76, 3,837.99 and 827.25

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Solution

The fourth proportional to 2,558.76, 3,837.99 and 827.25 is: 1,240.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.76 : 3,837.99 = 827.25 : x
  2. Step 2: Convert to fraction form
    2,558.76/3,837.99 = 827.25/x
  3. Step 3: Cross multiply
    2,558.76x = 3,837.99 × 827.25
  4. Step 4: Simplify right side
    2,558.76x = 3,174,977.23
  5. Step 5: Solve for x
    x = 3,174,977.23/2,558.76
  6. Step 6: Final answer
    x = 1,240.83

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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.