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Finding the Fourth Proportional to 37,515.48, 51,769.42 and 20,516.42

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Solution

The fourth proportional to 37,515.48, 51,769.42 and 20,516.42 is: 28,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,515.48 : 51,769.42 = 20,516.42 : x
  2. Step 2: Convert to fraction form
    37,515.48/51,769.42 = 20,516.42/x
  3. Step 3: Cross multiply
    37,515.48x = 51,769.42 × 20,516.42
  4. Step 4: Simplify right side
    37,515.48x = 1,062,123,163.88
  5. Step 5: Solve for x
    x = 1,062,123,163.88/37,515.48
  6. Step 6: Final answer
    x = 28,311.60

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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.