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Finding the Fourth Proportional to 54,653.70, 81,992.88 and 16,706.40

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Solution

The fourth proportional to 54,653.70, 81,992.88 and 16,706.40 is: 25,063.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,653.70 : 81,992.88 = 16,706.40 : x
  2. Step 2: Convert to fraction form
    54,653.70/81,992.88 = 16,706.40/x
  3. Step 3: Cross multiply
    54,653.70x = 81,992.88 × 16,706.40
  4. Step 4: Simplify right side
    54,653.70x = 1,369,805,850.43
  5. Step 5: Solve for x
    x = 1,369,805,850.43/54,653.70
  6. Step 6: Final answer
    x = 25,063.37

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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.