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Finding the Fourth Proportional to 49,858.56, 74,765.93 and 18,671.94

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Solution

The fourth proportional to 49,858.56, 74,765.93 and 18,671.94 is: 27,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,858.56 : 74,765.93 = 18,671.94 : x
  2. Step 2: Convert to fraction form
    49,858.56/74,765.93 = 18,671.94/x
  3. Step 3: Cross multiply
    49,858.56x = 74,765.93 × 18,671.94
  4. Step 4: Simplify right side
    49,858.56x = 1,396,024,865.64
  5. Step 5: Solve for x
    x = 1,396,024,865.64/49,858.56
  6. Step 6: Final answer
    x = 27,999.70

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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.