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Finding the Fourth Proportional to 4,908.60, 6,773.22 and 2,918.43

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Solution

The fourth proportional to 4,908.60, 6,773.22 and 2,918.43 is: 4,027.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908.60 : 6,773.22 = 2,918.43 : x
  2. Step 2: Convert to fraction form
    4,908.60/6,773.22 = 2,918.43/x
  3. Step 3: Cross multiply
    4,908.60x = 6,773.22 × 2,918.43
  4. Step 4: Simplify right side
    4,908.60x = 19,767,168.44
  5. Step 5: Solve for x
    x = 19,767,168.44/4,908.60
  6. Step 6: Final answer
    x = 4,027.05

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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.