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Finding the Fourth Proportional to 5,806,391.12, 8,709,783.24 and 2,019,906.80

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Solution

The fourth proportional to 5,806,391.12, 8,709,783.24 and 2,019,906.80 is: 3,029,928.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,806,391.12 : 8,709,783.24 = 2,019,906.80 : x
  2. Step 2: Convert to fraction form
    5,806,391.12/8,709,783.24 = 2,019,906.80/x
  3. Step 3: Cross multiply
    5,806,391.12x = 8,709,783.24 × 2,019,906.80
  4. Step 4: Simplify right side
    5,806,391.12x = 17,592,950,393,002.03
  5. Step 5: Solve for x
    x = 17,592,950,393,002.03/5,806,391.12
  6. Step 6: Final answer
    x = 3,029,928.58

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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.