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Finding the Fourth Proportional to 3,393.16, 5,056.41 and 3,281.67

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Solution

The fourth proportional to 3,393.16, 5,056.41 and 3,281.67 is: 4,890.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.16 : 5,056.41 = 3,281.67 : x
  2. Step 2: Convert to fraction form
    3,393.16/5,056.41 = 3,281.67/x
  3. Step 3: Cross multiply
    3,393.16x = 5,056.41 × 3,281.67
  4. Step 4: Simplify right side
    3,393.16x = 16,593,481.31
  5. Step 5: Solve for x
    x = 16,593,481.31/3,393.16
  6. Step 6: Final answer
    x = 4,890.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.