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Finding the Fourth Proportional to 8,277,231.20, 12,415,846.80 and 8,277,231.20

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Solution

The fourth proportional to 8,277,231.20, 12,415,846.80 and 8,277,231.20 is: 12,415,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,277,231.20 : 12,415,846.80 = 8,277,231.20 : x
  2. Step 2: Convert to fraction form
    8,277,231.20/12,415,846.80 = 8,277,231.20/x
  3. Step 3: Cross multiply
    8,277,231.20x = 12,415,846.80 × 8,277,231.20
  4. Step 4: Simplify right side
    8,277,231.20x = 102,768,834,507,380.17
  5. Step 5: Solve for x
    x = 102,768,834,507,380.17/8,277,231.20
  6. Step 6: Final answer
    x = 12,415,846.80

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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.