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Finding the Fourth Proportional to 19,399.32, 26,770.14 and 11,015.64

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Solution

The fourth proportional to 19,399.32, 26,770.14 and 11,015.64 is: 15,201.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,399.32 : 26,770.14 = 11,015.64 : x
  2. Step 2: Convert to fraction form
    19,399.32/26,770.14 = 11,015.64/x
  3. Step 3: Cross multiply
    19,399.32x = 26,770.14 × 11,015.64
  4. Step 4: Simplify right side
    19,399.32x = 294,890,224.99
  5. Step 5: Solve for x
    x = 294,890,224.99/19,399.32
  6. Step 6: Final answer
    x = 15,201.06

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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.