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Finding the Fourth Proportional to 3,558.84, 5,361.99 and 3,212.57

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Solution

The fourth proportional to 3,558.84, 5,361.99 and 3,212.57 is: 4,840.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.84 : 5,361.99 = 3,212.57 : x
  2. Step 2: Convert to fraction form
    3,558.84/5,361.99 = 3,212.57/x
  3. Step 3: Cross multiply
    3,558.84x = 5,361.99 × 3,212.57
  4. Step 4: Simplify right side
    3,558.84x = 17,225,768.21
  5. Step 5: Solve for x
    x = 17,225,768.21/3,558.84
  6. Step 6: Final answer
    x = 4,840.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.