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Finding the Fourth Proportional to 40,515.15, 60,765.03 and 17,157.99

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Solution

The fourth proportional to 40,515.15, 60,765.03 and 17,157.99 is: 25,733.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,515.15 : 60,765.03 = 17,157.99 : x
  2. Step 2: Convert to fraction form
    40,515.15/60,765.03 = 17,157.99/x
  3. Step 3: Cross multiply
    40,515.15x = 60,765.03 × 17,157.99
  4. Step 4: Simplify right side
    40,515.15x = 1,042,605,777.09
  5. Step 5: Solve for x
    x = 1,042,605,777.09/40,515.15
  6. Step 6: Final answer
    x = 25,733.73

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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.