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Finding the Fourth Proportional to 6,693.98, 9,238.82 and 3,860.84

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Solution

The fourth proportional to 6,693.98, 9,238.82 and 3,860.84 is: 5,328.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,693.98 : 9,238.82 = 3,860.84 : x
  2. Step 2: Convert to fraction form
    6,693.98/9,238.82 = 3,860.84/x
  3. Step 3: Cross multiply
    6,693.98x = 9,238.82 × 3,860.84
  4. Step 4: Simplify right side
    6,693.98x = 35,669,605.81
  5. Step 5: Solve for x
    x = 35,669,605.81/6,693.98
  6. Step 6: Final answer
    x = 5,328.61

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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.