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Finding the Fourth Proportional to 7,208.76, 10,813.20 and 2,014.56

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Solution

The fourth proportional to 7,208.76, 10,813.20 and 2,014.56 is: 3,021.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208.76 : 10,813.20 = 2,014.56 : x
  2. Step 2: Convert to fraction form
    7,208.76/10,813.20 = 2,014.56/x
  3. Step 3: Cross multiply
    7,208.76x = 10,813.20 × 2,014.56
  4. Step 4: Simplify right side
    7,208.76x = 21,783,840.19
  5. Step 5: Solve for x
    x = 21,783,840.19/7,208.76
  6. Step 6: Final answer
    x = 3,021.86

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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.