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Finding the Fourth Proportional to 17,416.80, 26,086.80 and 15,112.80

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Solution

The fourth proportional to 17,416.80, 26,086.80 and 15,112.80 is: 22,635.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,416.80 : 26,086.80 = 15,112.80 : x
  2. Step 2: Convert to fraction form
    17,416.80/26,086.80 = 15,112.80/x
  3. Step 3: Cross multiply
    17,416.80x = 26,086.80 × 15,112.80
  4. Step 4: Simplify right side
    17,416.80x = 394,244,591.04
  5. Step 5: Solve for x
    x = 394,244,591.04/17,416.80
  6. Step 6: Final answer
    x = 22,635.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.