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Finding the Fourth Proportional to 54,674.36, 81,959.70 and 26,939.96

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Solution

The fourth proportional to 54,674.36, 81,959.70 and 26,939.96 is: 40,384.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,674.36 : 81,959.70 = 26,939.96 : x
  2. Step 2: Convert to fraction form
    54,674.36/81,959.70 = 26,939.96/x
  3. Step 3: Cross multiply
    54,674.36x = 81,959.70 × 26,939.96
  4. Step 4: Simplify right side
    54,674.36x = 2,207,991,039.61
  5. Step 5: Solve for x
    x = 2,207,991,039.61/54,674.36
  6. Step 6: Final answer
    x = 40,384.40

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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.