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Finding the Fourth Proportional to 8,321,253.80, 12,481,880.70 and 7,376,469.80

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Solution

The fourth proportional to 8,321,253.80, 12,481,880.70 and 7,376,469.80 is: 11,064,704.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,253.80 : 12,481,880.70 = 7,376,469.80 : x
  2. Step 2: Convert to fraction form
    8,321,253.80/12,481,880.70 = 7,376,469.80/x
  3. Step 3: Cross multiply
    8,321,253.80x = 12,481,880.70 × 7,376,469.80
  4. Step 4: Simplify right side
    8,321,253.80x = 92,072,216,030,752.86
  5. Step 5: Solve for x
    x = 92,072,216,030,752.86/8,321,253.80
  6. Step 6: Final answer
    x = 11,064,704.70

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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.