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Finding the Fourth Proportional to 3,951.90, 5,933.34 and 2,005.50

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Solution

The fourth proportional to 3,951.90, 5,933.34 and 2,005.50 is: 3,011.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.90 : 5,933.34 = 2,005.50 : x
  2. Step 2: Convert to fraction form
    3,951.90/5,933.34 = 2,005.50/x
  3. Step 3: Cross multiply
    3,951.90x = 5,933.34 × 2,005.50
  4. Step 4: Simplify right side
    3,951.90x = 11,899,313.37
  5. Step 5: Solve for x
    x = 11,899,313.37/3,951.90
  6. Step 6: Final answer
    x = 3,011.04

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1.5x scale

Why These Related Problems?

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