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Finding the Fourth Proportional to 19,581.44, 27,042.56 and 16,770.56

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Solution

The fourth proportional to 19,581.44, 27,042.56 and 16,770.56 is: 23,160.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,581.44 : 27,042.56 = 16,770.56 : x
  2. Step 2: Convert to fraction form
    19,581.44/27,042.56 = 16,770.56/x
  3. Step 3: Cross multiply
    19,581.44x = 27,042.56 × 16,770.56
  4. Step 4: Simplify right side
    19,581.44x = 453,518,875.03
  5. Step 5: Solve for x
    x = 453,518,875.03/19,581.44
  6. Step 6: Final answer
    x = 23,160.65

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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.