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Finding the Fourth Proportional to 4,620.21, 6,931.50 and 1,333.56

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Solution

The fourth proportional to 4,620.21, 6,931.50 and 1,333.56 is: 2,000.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,620.21 : 6,931.50 = 1,333.56 : x
  2. Step 2: Convert to fraction form
    4,620.21/6,931.50 = 1,333.56/x
  3. Step 3: Cross multiply
    4,620.21x = 6,931.50 × 1,333.56
  4. Step 4: Simplify right side
    4,620.21x = 9,243,571.14
  5. Step 5: Solve for x
    x = 9,243,571.14/4,620.21
  6. Step 6: Final answer
    x = 2,000.68

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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.