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Finding the Fourth Proportional to 49,352.40, 68,106.84 and 28,131.96

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Solution

The fourth proportional to 49,352.40, 68,106.84 and 28,131.96 is: 38,822.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,352.40 : 68,106.84 = 28,131.96 : x
  2. Step 2: Convert to fraction form
    49,352.40/68,106.84 = 28,131.96/x
  3. Step 3: Cross multiply
    49,352.40x = 68,106.84 × 28,131.96
  4. Step 4: Simplify right side
    49,352.40x = 1,915,978,898.61
  5. Step 5: Solve for x
    x = 1,915,978,898.61/49,352.40
  6. Step 6: Final answer
    x = 38,822.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.