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Finding the Fourth Proportional to 7,186,458.41, 9,917,314.68 and 3,967,194.41

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Solution

The fourth proportional to 7,186,458.41, 9,917,314.68 and 3,967,194.41 is: 5,474,729.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,186,458.41 : 9,917,314.68 = 3,967,194.41 : x
  2. Step 2: Convert to fraction form
    7,186,458.41/9,917,314.68 = 3,967,194.41/x
  3. Step 3: Cross multiply
    7,186,458.41x = 9,917,314.68 × 3,967,194.41
  4. Step 4: Simplify right side
    7,186,458.41x = 39,343,915,311,120.36
  5. Step 5: Solve for x
    x = 39,343,915,311,120.36/7,186,458.41
  6. Step 6: Final answer
    x = 5,474,729.43

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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.