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Finding the Fourth Proportional to 12,401.01, 17,109.09 and 7,927.38

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Solution

The fourth proportional to 12,401.01, 17,109.09 and 7,927.38 is: 10,937.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,401.01 : 17,109.09 = 7,927.38 : x
  2. Step 2: Convert to fraction form
    12,401.01/17,109.09 = 7,927.38/x
  3. Step 3: Cross multiply
    12,401.01x = 17,109.09 × 7,927.38
  4. Step 4: Simplify right side
    12,401.01x = 135,630,257.88
  5. Step 5: Solve for x
    x = 135,630,257.88/12,401.01
  6. Step 6: Final answer
    x = 10,937.03

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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.