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Finding the Fourth Proportional to 3,228.84, 4,455.96 and 2,529

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Solution

The fourth proportional to 3,228.84, 4,455.96 and 2,529 is: 3,490.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.84 : 4,455.96 = 2,529 : x
  2. Step 2: Convert to fraction form
    3,228.84/4,455.96 = 2,529/x
  3. Step 3: Cross multiply
    3,228.84x = 4,455.96 × 2,529
  4. Step 4: Simplify right side
    3,228.84x = 11,269,122.84
  5. Step 5: Solve for x
    x = 11,269,122.84/3,228.84
  6. Step 6: Final answer
    x = 3,490.15

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Why These Related Problems?

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