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Finding the Fourth Proportional to 4,807.21, 7,208.24 and 1,474.87

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Solution

The fourth proportional to 4,807.21, 7,208.24 and 1,474.87 is: 2,211.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,807.21 : 7,208.24 = 1,474.87 : x
  2. Step 2: Convert to fraction form
    4,807.21/7,208.24 = 1,474.87/x
  3. Step 3: Cross multiply
    4,807.21x = 7,208.24 × 1,474.87
  4. Step 4: Simplify right side
    4,807.21x = 10,631,209.55
  5. Step 5: Solve for x
    x = 10,631,209.55/4,807.21
  6. Step 6: Final answer
    x = 2,211.51

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.