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Finding the Fourth Proportional to 33,405.99, 46,082.79 and 20,655.09

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Solution

The fourth proportional to 33,405.99, 46,082.79 and 20,655.09 is: 28,493.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,405.99 : 46,082.79 = 20,655.09 : x
  2. Step 2: Convert to fraction form
    33,405.99/46,082.79 = 20,655.09/x
  3. Step 3: Cross multiply
    33,405.99x = 46,082.79 × 20,655.09
  4. Step 4: Simplify right side
    33,405.99x = 951,844,314.58
  5. Step 5: Solve for x
    x = 951,844,314.58/33,405.99
  6. Step 6: Final answer
    x = 28,493.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.