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Finding the Fourth Proportional to 2,563.36, 3,845.58 and 833.20

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Solution

The fourth proportional to 2,563.36, 3,845.58 and 833.20 is: 1,249.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,563.36 : 3,845.58 = 833.20 : x
  2. Step 2: Convert to fraction form
    2,563.36/3,845.58 = 833.20/x
  3. Step 3: Cross multiply
    2,563.36x = 3,845.58 × 833.20
  4. Step 4: Simplify right side
    2,563.36x = 3,204,137.26
  5. Step 5: Solve for x
    x = 3,204,137.26/2,563.36
  6. Step 6: Final answer
    x = 1,249.98

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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.