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Finding the Fourth Proportional to 26,836.80, 40,226.40 and 10,190.40

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Solution

The fourth proportional to 26,836.80, 40,226.40 and 10,190.40 is: 15,274.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,836.80 : 40,226.40 = 10,190.40 : x
  2. Step 2: Convert to fraction form
    26,836.80/40,226.40 = 10,190.40/x
  3. Step 3: Cross multiply
    26,836.80x = 40,226.40 × 10,190.40
  4. Step 4: Simplify right side
    26,836.80x = 409,923,106.56
  5. Step 5: Solve for x
    x = 409,923,106.56/26,836.80
  6. Step 6: Final answer
    x = 15,274.66

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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.