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Finding the Fourth Proportional to 30,286.84, 41,796.06 and 16,858.66

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Solution

The fourth proportional to 30,286.84, 41,796.06 and 16,858.66 is: 23,265.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,286.84 : 41,796.06 = 16,858.66 : x
  2. Step 2: Convert to fraction form
    30,286.84/41,796.06 = 16,858.66/x
  3. Step 3: Cross multiply
    30,286.84x = 41,796.06 × 16,858.66
  4. Step 4: Simplify right side
    30,286.84x = 704,625,564.88
  5. Step 5: Solve for x
    x = 704,625,564.88/30,286.84
  6. Step 6: Final answer
    x = 23,265.07

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.