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Finding the Fourth Proportional to 18,674.96, 25,763.28 and 13,367.84

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Solution

The fourth proportional to 18,674.96, 25,763.28 and 13,367.84 is: 18,441.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,674.96 : 25,763.28 = 13,367.84 : x
  2. Step 2: Convert to fraction form
    18,674.96/25,763.28 = 13,367.84/x
  3. Step 3: Cross multiply
    18,674.96x = 25,763.28 × 13,367.84
  4. Step 4: Simplify right side
    18,674.96x = 344,399,404.92
  5. Step 5: Solve for x
    x = 344,399,404.92/18,674.96
  6. Step 6: Final answer
    x = 18,441.77

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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.