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Finding the Fourth Proportional to 14,993.44, 20,692.56 and 8,709.28

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Solution

The fourth proportional to 14,993.44, 20,692.56 and 8,709.28 is: 12,019.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,993.44 : 20,692.56 = 8,709.28 : x
  2. Step 2: Convert to fraction form
    14,993.44/20,692.56 = 8,709.28/x
  3. Step 3: Cross multiply
    14,993.44x = 20,692.56 × 8,709.28
  4. Step 4: Simplify right side
    14,993.44x = 180,217,298.96
  5. Step 5: Solve for x
    x = 180,217,298.96/14,993.44
  6. Step 6: Final answer
    x = 12,019.74

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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.