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Finding the Fourth Proportional to 19,712.54, 27,199.24 and 11,327.42

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Solution

The fourth proportional to 19,712.54, 27,199.24 and 11,327.42 is: 15,629.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,712.54 : 27,199.24 = 11,327.42 : x
  2. Step 2: Convert to fraction form
    19,712.54/27,199.24 = 11,327.42/x
  3. Step 3: Cross multiply
    19,712.54x = 27,199.24 × 11,327.42
  4. Step 4: Simplify right side
    19,712.54x = 308,097,050.85
  5. Step 5: Solve for x
    x = 308,097,050.85/19,712.54
  6. Step 6: Final answer
    x = 15,629.50

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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.