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Finding the Fourth Proportional to 8,768.62, 12,100.99 and 4,790.03

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Solution

The fourth proportional to 8,768.62, 12,100.99 and 4,790.03 is: 6,610.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.62 : 12,100.99 = 4,790.03 : x
  2. Step 2: Convert to fraction form
    8,768.62/12,100.99 = 4,790.03/x
  3. Step 3: Cross multiply
    8,768.62x = 12,100.99 × 4,790.03
  4. Step 4: Simplify right side
    8,768.62x = 57,964,105.13
  5. Step 5: Solve for x
    x = 57,964,105.13/8,768.62
  6. Step 6: Final answer
    x = 6,610.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.