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Finding the Fourth Proportional to 54,216.60, 81,260.10 and 27,907.80

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Solution

The fourth proportional to 54,216.60, 81,260.10 and 27,907.80 is: 41,828.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,216.60 : 81,260.10 = 27,907.80 : x
  2. Step 2: Convert to fraction form
    54,216.60/81,260.10 = 27,907.80/x
  3. Step 3: Cross multiply
    54,216.60x = 81,260.10 × 27,907.80
  4. Step 4: Simplify right side
    54,216.60x = 2,267,790,618.78
  5. Step 5: Solve for x
    x = 2,267,790,618.78/54,216.60
  6. Step 6: Final answer
    x = 41,828.34

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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.