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Finding the Fourth Proportional to 2,682.56, 3,702.08 and 2,018.22

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Solution

The fourth proportional to 2,682.56, 3,702.08 and 2,018.22 is: 2,785.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,682.56 : 3,702.08 = 2,018.22 : x
  2. Step 2: Convert to fraction form
    2,682.56/3,702.08 = 2,018.22/x
  3. Step 3: Cross multiply
    2,682.56x = 3,702.08 × 2,018.22
  4. Step 4: Simplify right side
    2,682.56x = 7,471,616.94
  5. Step 5: Solve for x
    x = 7,471,616.94/2,682.56
  6. Step 6: Final answer
    x = 2,785.26

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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.