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Finding the Fourth Proportional to 2,049.13, 3,073.89 and 816.26

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Solution

The fourth proportional to 2,049.13, 3,073.89 and 816.26 is: 1,224.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,049.13 : 3,073.89 = 816.26 : x
  2. Step 2: Convert to fraction form
    2,049.13/3,073.89 = 816.26/x
  3. Step 3: Cross multiply
    2,049.13x = 3,073.89 × 816.26
  4. Step 4: Simplify right side
    2,049.13x = 2,509,093.45
  5. Step 5: Solve for x
    x = 2,509,093.45/2,049.13
  6. Step 6: Final answer
    x = 1,224.47

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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.