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Finding the Fourth Proportional to 18,367.02, 25,342.98 and 12,692.97

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Solution

The fourth proportional to 18,367.02, 25,342.98 and 12,692.97 is: 17,513.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,367.02 : 25,342.98 = 12,692.97 : x
  2. Step 2: Convert to fraction form
    18,367.02/25,342.98 = 12,692.97/x
  3. Step 3: Cross multiply
    18,367.02x = 25,342.98 × 12,692.97
  4. Step 4: Simplify right side
    18,367.02x = 321,677,637.25
  5. Step 5: Solve for x
    x = 321,677,637.25/18,367.02
  6. Step 6: Final answer
    x = 17,513.87

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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.