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Finding the Fourth Proportional to 5,359.54, 8,040.09 and 1,662.07

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Solution

The fourth proportional to 5,359.54, 8,040.09 and 1,662.07 is: 2,493.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,359.54 : 8,040.09 = 1,662.07 : x
  2. Step 2: Convert to fraction form
    5,359.54/8,040.09 = 1,662.07/x
  3. Step 3: Cross multiply
    5,359.54x = 8,040.09 × 1,662.07
  4. Step 4: Simplify right side
    5,359.54x = 13,363,145.65
  5. Step 5: Solve for x
    x = 13,363,145.65/5,359.54
  6. Step 6: Final answer
    x = 2,493.34

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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.