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Finding the Fourth Proportional to 19,555.64, 26,990.24 and 11,600.64

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Solution

The fourth proportional to 19,555.64, 26,990.24 and 11,600.64 is: 16,010.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,555.64 : 26,990.24 = 11,600.64 : x
  2. Step 2: Convert to fraction form
    19,555.64/26,990.24 = 11,600.64/x
  3. Step 3: Cross multiply
    19,555.64x = 26,990.24 × 11,600.64
  4. Step 4: Simplify right side
    19,555.64x = 313,104,057.75
  5. Step 5: Solve for x
    x = 313,104,057.75/19,555.64
  6. Step 6: Final answer
    x = 16,010.93

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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.