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Finding the Fourth Proportional to 18,674.34, 25,769.00 and 10,716.39

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Solution

The fourth proportional to 18,674.34, 25,769.00 and 10,716.39 is: 14,787.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,674.34 : 25,769.00 = 10,716.39 : x
  2. Step 2: Convert to fraction form
    18,674.34/25,769.00 = 10,716.39/x
  3. Step 3: Cross multiply
    18,674.34x = 25,769.00 × 10,716.39
  4. Step 4: Simplify right side
    18,674.34x = 276,150,600.33
  5. Step 5: Solve for x
    x = 276,150,600.33/18,674.34
  6. Step 6: Final answer
    x = 14,787.71

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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.