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Finding the Fourth Proportional to 18,811.50, 25,960.37 and 10,634.46

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Solution

The fourth proportional to 18,811.50, 25,960.37 and 10,634.46 is: 14,675.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,811.50 : 25,960.37 = 10,634.46 : x
  2. Step 2: Convert to fraction form
    18,811.50/25,960.37 = 10,634.46/x
  3. Step 3: Cross multiply
    18,811.50x = 25,960.37 × 10,634.46
  4. Step 4: Simplify right side
    18,811.50x = 276,074,410.69
  5. Step 5: Solve for x
    x = 276,074,410.69/18,811.50
  6. Step 6: Final answer
    x = 14,675.83

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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.