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Finding the Fourth Proportional to 39,891.60, 59,832.60 and 16,515.60

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Solution

The fourth proportional to 39,891.60, 59,832.60 and 16,515.60 is: 24,771.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,891.60 : 59,832.60 = 16,515.60 : x
  2. Step 2: Convert to fraction form
    39,891.60/59,832.60 = 16,515.60/x
  3. Step 3: Cross multiply
    39,891.60x = 59,832.60 × 16,515.60
  4. Step 4: Simplify right side
    39,891.60x = 988,171,288.56
  5. Step 5: Solve for x
    x = 988,171,288.56/39,891.60
  6. Step 6: Final answer
    x = 24,771.41

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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.