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Finding the Fourth Proportional to 54,530.56, 81,796.56 and 19,472.32

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Solution

The fourth proportional to 54,530.56, 81,796.56 and 19,472.32 is: 29,208.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,530.56 : 81,796.56 = 19,472.32 : x
  2. Step 2: Convert to fraction form
    54,530.56/81,796.56 = 19,472.32/x
  3. Step 3: Cross multiply
    54,530.56x = 81,796.56 × 19,472.32
  4. Step 4: Simplify right side
    54,530.56x = 1,592,768,791.22
  5. Step 5: Solve for x
    x = 1,592,768,791.22/54,530.56
  6. Step 6: Final answer
    x = 29,208.74

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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.