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Finding the Fourth Proportional to 54,653.40, 81,984.89 and 16,711.23

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Solution

The fourth proportional to 54,653.40, 81,984.89 and 16,711.23 is: 25,068.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,653.40 : 81,984.89 = 16,711.23 : x
  2. Step 2: Convert to fraction form
    54,653.40/81,984.89 = 16,711.23/x
  3. Step 3: Cross multiply
    54,653.40x = 81,984.89 × 16,711.23
  4. Step 4: Simplify right side
    54,653.40x = 1,370,068,353.31
  5. Step 5: Solve for x
    x = 1,370,068,353.31/54,653.40
  6. Step 6: Final answer
    x = 25,068.31

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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.