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Finding the Fourth Proportional to 5,359.68, 8,040.74 and 1,662.03

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Solution

The fourth proportional to 5,359.68, 8,040.74 and 1,662.03 is: 2,493.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,359.68 : 8,040.74 = 1,662.03 : x
  2. Step 2: Convert to fraction form
    5,359.68/8,040.74 = 1,662.03/x
  3. Step 3: Cross multiply
    5,359.68x = 8,040.74 × 1,662.03
  4. Step 4: Simplify right side
    5,359.68x = 13,363,942.79
  5. Step 5: Solve for x
    x = 13,363,942.79/5,359.68
  6. Step 6: Final answer
    x = 2,493.42

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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.