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Finding the Fourth Proportional to 5,393,861.26, 8,089,696.77 and 1,980,974.86

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Solution

The fourth proportional to 5,393,861.26, 8,089,696.77 and 1,980,974.86 is: 2,971,060.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,393,861.26 : 8,089,696.77 = 1,980,974.86 : x
  2. Step 2: Convert to fraction form
    5,393,861.26/8,089,696.77 = 1,980,974.86/x
  3. Step 3: Cross multiply
    5,393,861.26x = 8,089,696.77 × 1,980,974.86
  4. Step 4: Simplify right side
    5,393,861.26x = 16,025,485,926,393.20
  5. Step 5: Solve for x
    x = 16,025,485,926,393.20/5,393,861.26
  6. Step 6: Final answer
    x = 2,971,060.09

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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.