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Finding the Fourth Proportional to 71,846.56, 107,771.19 and 19,255.60

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Solution

The fourth proportional to 71,846.56, 107,771.19 and 19,255.60 is: 28,883.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,846.56 : 107,771.19 = 19,255.60 : x
  2. Step 2: Convert to fraction form
    71,846.56/107,771.19 = 19,255.60/x
  3. Step 3: Cross multiply
    71,846.56x = 107,771.19 × 19,255.60
  4. Step 4: Simplify right side
    71,846.56x = 2,075,198,926.16
  5. Step 5: Solve for x
    x = 2,075,198,926.16/71,846.56
  6. Step 6: Final answer
    x = 28,883.76

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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.