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Finding the Fourth Proportional to 54,595.89, 81,896.16 and 19,060.78

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Solution

The fourth proportional to 54,595.89, 81,896.16 and 19,060.78 is: 28,591.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,595.89 : 81,896.16 = 19,060.78 : x
  2. Step 2: Convert to fraction form
    54,595.89/81,896.16 = 19,060.78/x
  3. Step 3: Cross multiply
    54,595.89x = 81,896.16 × 19,060.78
  4. Step 4: Simplify right side
    54,595.89x = 1,561,004,593.30
  5. Step 5: Solve for x
    x = 1,561,004,593.30/54,595.89
  6. Step 6: Final answer
    x = 28,591.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.