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Finding the Fourth Proportional to 13,674,629.22, 20,511,978.57 and 5,587,604.85

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Solution

The fourth proportional to 13,674,629.22, 20,511,978.57 and 5,587,604.85 is: 8,381,421.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,674,629.22 : 20,511,978.57 = 5,587,604.85 : x
  2. Step 2: Convert to fraction form
    13,674,629.22/20,511,978.57 = 5,587,604.85/x
  3. Step 3: Cross multiply
    13,674,629.22x = 20,511,978.57 × 5,587,604.85
  4. Step 4: Simplify right side
    13,674,629.22x = 114,612,830,942,362.03
  5. Step 5: Solve for x
    x = 114,612,830,942,362.03/13,674,629.22
  6. Step 6: Final answer
    x = 8,381,421.47

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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.