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Finding the Fourth Proportional to 17,940.87, 24,754.68 and 10,865.97

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Solution

The fourth proportional to 17,940.87, 24,754.68 and 10,865.97 is: 14,992.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,940.87 : 24,754.68 = 10,865.97 : x
  2. Step 2: Convert to fraction form
    17,940.87/24,754.68 = 10,865.97/x
  3. Step 3: Cross multiply
    17,940.87x = 24,754.68 × 10,865.97
  4. Step 4: Simplify right side
    17,940.87x = 268,983,610.24
  5. Step 5: Solve for x
    x = 268,983,610.24/17,940.87
  6. Step 6: Final answer
    x = 14,992.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.