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Finding the Fourth Proportional to 8,652,920.23, 12,978,388.90 and 2,263,789.27

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Solution

The fourth proportional to 8,652,920.23, 12,978,388.90 and 2,263,789.27 is: 3,395,424.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,652,920.23 : 12,978,388.90 = 2,263,789.27 : x
  2. Step 2: Convert to fraction form
    8,652,920.23/12,978,388.90 = 2,263,789.27/x
  3. Step 3: Cross multiply
    8,652,920.23x = 12,978,388.90 × 2,263,789.27
  4. Step 4: Simplify right side
    8,652,920.23x = 29,380,337,533,707.11
  5. Step 5: Solve for x
    x = 29,380,337,533,707.11/8,652,920.23
  6. Step 6: Final answer
    x = 3,395,424.52

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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.