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Finding the Fourth Proportional to 18,796.10, 25,923.65 and 12,082.41

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Solution

The fourth proportional to 18,796.10, 25,923.65 and 12,082.41 is: 16,664.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,796.10 : 25,923.65 = 12,082.41 : x
  2. Step 2: Convert to fraction form
    18,796.10/25,923.65 = 12,082.41/x
  3. Step 3: Cross multiply
    18,796.10x = 25,923.65 × 12,082.41
  4. Step 4: Simplify right side
    18,796.10x = 313,220,107.58
  5. Step 5: Solve for x
    x = 313,220,107.58/18,796.10
  6. Step 6: Final answer
    x = 16,664.11

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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.