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Finding the Fourth Proportional to 47,994.84, 72,015.48 and 19,936.44

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Solution

The fourth proportional to 47,994.84, 72,015.48 and 19,936.44 is: 29,914.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,994.84 : 72,015.48 = 19,936.44 : x
  2. Step 2: Convert to fraction form
    47,994.84/72,015.48 = 19,936.44/x
  3. Step 3: Cross multiply
    47,994.84x = 72,015.48 × 19,936.44
  4. Step 4: Simplify right side
    47,994.84x = 1,435,732,296.09
  5. Step 5: Solve for x
    x = 1,435,732,296.09/47,994.84
  6. Step 6: Final answer
    x = 29,914.31

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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.