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Finding the Fourth Proportional to 8,728.54, 13,105.11 and 6,262.01

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Solution

The fourth proportional to 8,728.54, 13,105.11 and 6,262.01 is: 9,401.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.54 : 13,105.11 = 6,262.01 : x
  2. Step 2: Convert to fraction form
    8,728.54/13,105.11 = 6,262.01/x
  3. Step 3: Cross multiply
    8,728.54x = 13,105.11 × 6,262.01
  4. Step 4: Simplify right side
    8,728.54x = 82,064,298.56
  5. Step 5: Solve for x
    x = 82,064,298.56/8,728.54
  6. Step 6: Final answer
    x = 9,401.84

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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.