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Finding the Fourth Proportional to 2,867.22, 4,276.22 and 2,818.01

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Solution

The fourth proportional to 2,867.22, 4,276.22 and 2,818.01 is: 4,202.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867.22 : 4,276.22 = 2,818.01 : x
  2. Step 2: Convert to fraction form
    2,867.22/4,276.22 = 2,818.01/x
  3. Step 3: Cross multiply
    2,867.22x = 4,276.22 × 2,818.01
  4. Step 4: Simplify right side
    2,867.22x = 12,050,427.32
  5. Step 5: Solve for x
    x = 12,050,427.32/2,867.22
  6. Step 6: Final answer
    x = 4,202.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.