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Finding the Fourth Proportional to 6,722.47, 9,276.30 and 3,737.82

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Solution

The fourth proportional to 6,722.47, 9,276.30 and 3,737.82 is: 5,157.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,722.47 : 9,276.30 = 3,737.82 : x
  2. Step 2: Convert to fraction form
    6,722.47/9,276.30 = 3,737.82/x
  3. Step 3: Cross multiply
    6,722.47x = 9,276.30 × 3,737.82
  4. Step 4: Simplify right side
    6,722.47x = 34,673,174.45
  5. Step 5: Solve for x
    x = 34,673,174.45/6,722.47
  6. Step 6: Final answer
    x = 5,157.80

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.