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Finding the Fourth Proportional to 33,075, 49,613.31 and 8,451

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Solution

The fourth proportional to 33,075, 49,613.31 and 8,451 is: 12,676.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,075 : 49,613.31 = 8,451 : x
  2. Step 2: Convert to fraction form
    33,075/49,613.31 = 8,451/x
  3. Step 3: Cross multiply
    33,075x = 49,613.31 × 8,451
  4. Step 4: Simplify right side
    33,075x = 419,282,082.81
  5. Step 5: Solve for x
    x = 419,282,082.81/33,075
  6. Step 6: Final answer
    x = 12,676.71

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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.