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Finding the Fourth Proportional to 7,168.56, 10,773 and 4,247.28

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Solution

The fourth proportional to 7,168.56, 10,773 and 4,247.28 is: 6,382.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168.56 : 10,773 = 4,247.28 : x
  2. Step 2: Convert to fraction form
    7,168.56/10,773 = 4,247.28/x
  3. Step 3: Cross multiply
    7,168.56x = 10,773 × 4,247.28
  4. Step 4: Simplify right side
    7,168.56x = 45,755,947.44
  5. Step 5: Solve for x
    x = 45,755,947.44/7,168.56
  6. Step 6: Final answer
    x = 6,382.86

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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.