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Finding the Fourth Proportional to 4,872.42, 7,309.10 and 1,362.43

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Solution

The fourth proportional to 4,872.42, 7,309.10 and 1,362.43 is: 2,043.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872.42 : 7,309.10 = 1,362.43 : x
  2. Step 2: Convert to fraction form
    4,872.42/7,309.10 = 1,362.43/x
  3. Step 3: Cross multiply
    4,872.42x = 7,309.10 × 1,362.43
  4. Step 4: Simplify right side
    4,872.42x = 9,958,147.32
  5. Step 5: Solve for x
    x = 9,958,147.32/4,872.42
  6. Step 6: Final answer
    x = 2,043.78

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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.