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Finding the Fourth Proportional to 33,629.71, 50,418.40 and 21,758.40

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Solution

The fourth proportional to 33,629.71, 50,418.40 and 21,758.40 is: 32,620.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,629.71 : 50,418.40 = 21,758.40 : x
  2. Step 2: Convert to fraction form
    33,629.71/50,418.40 = 21,758.40/x
  3. Step 3: Cross multiply
    33,629.71x = 50,418.40 × 21,758.40
  4. Step 4: Simplify right side
    33,629.71x = 1,097,023,559.16
  5. Step 5: Solve for x
    x = 1,097,023,559.16/33,629.71
  6. Step 6: Final answer
    x = 32,620.67

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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.