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Finding the Fourth Proportional to 54,490.84, 81,736.16 and 15,047.84

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Solution

The fourth proportional to 54,490.84, 81,736.16 and 15,047.84 is: 22,571.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,490.84 : 81,736.16 = 15,047.84 : x
  2. Step 2: Convert to fraction form
    54,490.84/81,736.16 = 15,047.84/x
  3. Step 3: Cross multiply
    54,490.84x = 81,736.16 × 15,047.84
  4. Step 4: Simplify right side
    54,490.84x = 1,229,952,787.00
  5. Step 5: Solve for x
    x = 1,229,952,787.00/54,490.84
  6. Step 6: Final answer
    x = 22,571.74

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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.