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Finding the Fourth Proportional to 38,608.40, 57,912.60 and 16,416.20

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Solution

The fourth proportional to 38,608.40, 57,912.60 and 16,416.20 is: 24,624.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,608.40 : 57,912.60 = 16,416.20 : x
  2. Step 2: Convert to fraction form
    38,608.40/57,912.60 = 16,416.20/x
  3. Step 3: Cross multiply
    38,608.40x = 57,912.60 × 16,416.20
  4. Step 4: Simplify right side
    38,608.40x = 950,704,824.12
  5. Step 5: Solve for x
    x = 950,704,824.12/38,608.40
  6. Step 6: Final answer
    x = 24,624.30

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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.