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Finding the Fourth Proportional to 8,964.73, 13,388.39 and 7,634.30

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Solution

The fourth proportional to 8,964.73, 13,388.39 and 7,634.30 is: 11,401.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.73 : 13,388.39 = 7,634.30 : x
  2. Step 2: Convert to fraction form
    8,964.73/13,388.39 = 7,634.30/x
  3. Step 3: Cross multiply
    8,964.73x = 13,388.39 × 7,634.30
  4. Step 4: Simplify right side
    8,964.73x = 102,210,984.60
  5. Step 5: Solve for x
    x = 102,210,984.60/8,964.73
  6. Step 6: Final answer
    x = 11,401.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.