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Finding the Fourth Proportional to 57,399.50, 86,099.12 and 15,846.38

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Solution

The fourth proportional to 57,399.50, 86,099.12 and 15,846.38 is: 23,769.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,399.50 : 86,099.12 = 15,846.38 : x
  2. Step 2: Convert to fraction form
    57,399.50/86,099.12 = 15,846.38/x
  3. Step 3: Cross multiply
    57,399.50x = 86,099.12 × 15,846.38
  4. Step 4: Simplify right side
    57,399.50x = 1,364,358,982.31
  5. Step 5: Solve for x
    x = 1,364,358,982.31/57,399.50
  6. Step 6: Final answer
    x = 23,769.53

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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.