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Finding the Fourth Proportional to 12,496.76, 18,744.99 and 3,731.75

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Solution

The fourth proportional to 12,496.76, 18,744.99 and 3,731.75 is: 5,597.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,496.76 : 18,744.99 = 3,731.75 : x
  2. Step 2: Convert to fraction form
    12,496.76/18,744.99 = 3,731.75/x
  3. Step 3: Cross multiply
    12,496.76x = 18,744.99 × 3,731.75
  4. Step 4: Simplify right side
    12,496.76x = 69,951,616.43
  5. Step 5: Solve for x
    x = 69,951,616.43/12,496.76
  6. Step 6: Final answer
    x = 5,597.58

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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.