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Finding the Fourth Proportional to 3,876.55, 5,814.42 and 2,026.92

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Solution

The fourth proportional to 3,876.55, 5,814.42 and 2,026.92 is: 3,040.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.55 : 5,814.42 = 2,026.92 : x
  2. Step 2: Convert to fraction form
    3,876.55/5,814.42 = 2,026.92/x
  3. Step 3: Cross multiply
    3,876.55x = 5,814.42 × 2,026.92
  4. Step 4: Simplify right side
    3,876.55x = 11,785,335.11
  5. Step 5: Solve for x
    x = 11,785,335.11/3,876.55
  6. Step 6: Final answer
    x = 3,040.16

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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.