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Finding the Fourth Proportional to 54,650.64, 81,978.66 and 25,055.04

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Solution

The fourth proportional to 54,650.64, 81,978.66 and 25,055.04 is: 37,583.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,650.64 : 81,978.66 = 25,055.04 : x
  2. Step 2: Convert to fraction form
    54,650.64/81,978.66 = 25,055.04/x
  3. Step 3: Cross multiply
    54,650.64x = 81,978.66 × 25,055.04
  4. Step 4: Simplify right side
    54,650.64x = 2,053,978,605.45
  5. Step 5: Solve for x
    x = 2,053,978,605.45/54,650.64
  6. Step 6: Final answer
    x = 37,583.80

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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.