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Finding the Fourth Proportional to 5,640.73, 8,467.98 and 5,417.75

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Solution

The fourth proportional to 5,640.73, 8,467.98 and 5,417.75 is: 8,133.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640.73 : 8,467.98 = 5,417.75 : x
  2. Step 2: Convert to fraction form
    5,640.73/8,467.98 = 5,417.75/x
  3. Step 3: Cross multiply
    5,640.73x = 8,467.98 × 5,417.75
  4. Step 4: Simplify right side
    5,640.73x = 45,877,375.68
  5. Step 5: Solve for x
    x = 45,877,375.68/5,640.73
  6. Step 6: Final answer
    x = 8,133.24

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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.