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Finding the Fourth Proportional to 7,839,002.80, 11,758,504.20 and 7,839,002.80

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Solution

The fourth proportional to 7,839,002.80, 11,758,504.20 and 7,839,002.80 is: 11,758,504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839,002.80 : 11,758,504.20 = 7,839,002.80 : x
  2. Step 2: Convert to fraction form
    7,839,002.80/11,758,504.20 = 7,839,002.80/x
  3. Step 3: Cross multiply
    7,839,002.80x = 11,758,504.20 × 7,839,002.80
  4. Step 4: Simplify right side
    7,839,002.80x = 92,174,947,347,611.75
  5. Step 5: Solve for x
    x = 92,174,947,347,611.75/7,839,002.80
  6. Step 6: Final answer
    x = 11,758,504.20

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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.