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Finding the Fourth Proportional to 5,366, 7,407.50 and 3,379.48

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Solution

The fourth proportional to 5,366, 7,407.50 and 3,379.48 is: 4,665.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,366 : 7,407.50 = 3,379.48 : x
  2. Step 2: Convert to fraction form
    5,366/7,407.50 = 3,379.48/x
  3. Step 3: Cross multiply
    5,366x = 7,407.50 × 3,379.48
  4. Step 4: Simplify right side
    5,366x = 25,033,498.10
  5. Step 5: Solve for x
    x = 25,033,498.10/5,366
  6. Step 6: Final answer
    x = 4,665.21

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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.