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Finding the Fourth Proportional to 5,808.69, 8,705.90 and 2,684.47

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Solution

The fourth proportional to 5,808.69, 8,705.90 and 2,684.47 is: 4,023.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,808.69 : 8,705.90 = 2,684.47 : x
  2. Step 2: Convert to fraction form
    5,808.69/8,705.90 = 2,684.47/x
  3. Step 3: Cross multiply
    5,808.69x = 8,705.90 × 2,684.47
  4. Step 4: Simplify right side
    5,808.69x = 23,370,713.54
  5. Step 5: Solve for x
    x = 23,370,713.54/5,808.69
  6. Step 6: Final answer
    x = 4,023.41

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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.