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Finding the Fourth Proportional to 38,099.80, 57,125.70 and 15,928.60

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Solution

The fourth proportional to 38,099.80, 57,125.70 and 15,928.60 is: 23,882.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,099.80 : 57,125.70 = 15,928.60 : x
  2. Step 2: Convert to fraction form
    38,099.80/57,125.70 = 15,928.60/x
  3. Step 3: Cross multiply
    38,099.80x = 57,125.70 × 15,928.60
  4. Step 4: Simplify right side
    38,099.80x = 909,932,425.02
  5. Step 5: Solve for x
    x = 909,932,425.02/38,099.80
  6. Step 6: Final answer
    x = 23,882.87

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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.