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Finding the Fourth Proportional to 28,907.70, 43,361.55 and 17,049.30

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Solution

The fourth proportional to 28,907.70, 43,361.55 and 17,049.30 is: 25,573.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,907.70 : 43,361.55 = 17,049.30 : x
  2. Step 2: Convert to fraction form
    28,907.70/43,361.55 = 17,049.30/x
  3. Step 3: Cross multiply
    28,907.70x = 43,361.55 × 17,049.30
  4. Step 4: Simplify right side
    28,907.70x = 739,284,074.42
  5. Step 5: Solve for x
    x = 739,284,074.42/28,907.70
  6. Step 6: Final answer
    x = 25,573.95

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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.