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Finding the Fourth Proportional to 9,978,950.92, 13,770,926.35 and 5,568,630.29

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Solution

The fourth proportional to 9,978,950.92, 13,770,926.35 and 5,568,630.29 is: 7,684,695.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,978,950.92 : 13,770,926.35 = 5,568,630.29 : x
  2. Step 2: Convert to fraction form
    9,978,950.92/13,770,926.35 = 5,568,630.29/x
  3. Step 3: Cross multiply
    9,978,950.92x = 13,770,926.35 × 5,568,630.29
  4. Step 4: Simplify right side
    9,978,950.92x = 76,685,197,511,192.94
  5. Step 5: Solve for x
    x = 76,685,197,511,192.94/9,978,950.92
  6. Step 6: Final answer
    x = 7,684,695.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.