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Finding the Fourth Proportional to 4,943.04, 7,404.72 and 3,379.20

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Solution

The fourth proportional to 4,943.04, 7,404.72 and 3,379.20 is: 5,062.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,943.04 : 7,404.72 = 3,379.20 : x
  2. Step 2: Convert to fraction form
    4,943.04/7,404.72 = 3,379.20/x
  3. Step 3: Cross multiply
    4,943.04x = 7,404.72 × 3,379.20
  4. Step 4: Simplify right side
    4,943.04x = 25,022,029.82
  5. Step 5: Solve for x
    x = 25,022,029.82/4,943.04
  6. Step 6: Final answer
    x = 5,062.07

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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.