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Finding the Fourth Proportional to 85,950.75, 128,958.93 and 33,364.34

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Solution

The fourth proportional to 85,950.75, 128,958.93 and 33,364.34 is: 50,059.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,950.75 : 128,958.93 = 33,364.34 : x
  2. Step 2: Convert to fraction form
    85,950.75/128,958.93 = 33,364.34/x
  3. Step 3: Cross multiply
    85,950.75x = 128,958.93 × 33,364.34
  4. Step 4: Simplify right side
    85,950.75x = 4,302,629,586.56
  5. Step 5: Solve for x
    x = 4,302,629,586.56/85,950.75
  6. Step 6: Final answer
    x = 50,059.24

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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.