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Finding the Fourth Proportional to 19,994.94, 29,993.49 and 5,203.89

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Solution

The fourth proportional to 19,994.94, 29,993.49 and 5,203.89 is: 7,806.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,994.94 : 29,993.49 = 5,203.89 : x
  2. Step 2: Convert to fraction form
    19,994.94/29,993.49 = 5,203.89/x
  3. Step 3: Cross multiply
    19,994.94x = 29,993.49 × 5,203.89
  4. Step 4: Simplify right side
    19,994.94x = 156,082,822.68
  5. Step 5: Solve for x
    x = 156,082,822.68/19,994.94
  6. Step 6: Final answer
    x = 7,806.12

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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.