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Finding the Fourth Proportional to 36,812.40, 55,234.80 and 17,080.80

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Solution

The fourth proportional to 36,812.40, 55,234.80 and 17,080.80 is: 25,628.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,812.40 : 55,234.80 = 17,080.80 : x
  2. Step 2: Convert to fraction form
    36,812.40/55,234.80 = 17,080.80/x
  3. Step 3: Cross multiply
    36,812.40x = 55,234.80 × 17,080.80
  4. Step 4: Simplify right side
    36,812.40x = 943,454,571.84
  5. Step 5: Solve for x
    x = 943,454,571.84/36,812.40
  6. Step 6: Final answer
    x = 25,628.72

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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.