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Finding the Fourth Proportional to 8,764,481.60, 13,168,840.80 and 5,571,137.60

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Solution

The fourth proportional to 8,764,481.60, 13,168,840.80 and 5,571,137.60 is: 8,370,765.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764,481.60 : 13,168,840.80 = 5,571,137.60 : x
  2. Step 2: Convert to fraction form
    8,764,481.60/13,168,840.80 = 5,571,137.60/x
  3. Step 3: Cross multiply
    8,764,481.60x = 13,168,840.80 × 5,571,137.60
  4. Step 4: Simplify right side
    8,764,481.60x = 73,365,424,129,294.08
  5. Step 5: Solve for x
    x = 73,365,424,129,294.08/8,764,481.60
  6. Step 6: Final answer
    x = 8,370,765.95

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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.