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Finding the Fourth Proportional to 18,796.38, 25,927.26 and 12,090.74

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Solution

The fourth proportional to 18,796.38, 25,927.26 and 12,090.74 is: 16,677.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,796.38 : 25,927.26 = 12,090.74 : x
  2. Step 2: Convert to fraction form
    18,796.38/25,927.26 = 12,090.74/x
  3. Step 3: Cross multiply
    18,796.38x = 25,927.26 × 12,090.74
  4. Step 4: Simplify right side
    18,796.38x = 313,479,759.57
  5. Step 5: Solve for x
    x = 313,479,759.57/18,796.38
  6. Step 6: Final answer
    x = 16,677.67

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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.