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Finding the Fourth Proportional to 25,157.96, 37,736.20 and 8,517.84

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Solution

The fourth proportional to 25,157.96, 37,736.20 and 8,517.84 is: 12,776.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,157.96 : 37,736.20 = 8,517.84 : x
  2. Step 2: Convert to fraction form
    25,157.96/37,736.20 = 8,517.84/x
  3. Step 3: Cross multiply
    25,157.96x = 37,736.20 × 8,517.84
  4. Step 4: Simplify right side
    25,157.96x = 321,430,913.81
  5. Step 5: Solve for x
    x = 321,430,913.81/25,157.96
  6. Step 6: Final answer
    x = 12,776.51

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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.