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Finding the Fourth Proportional to 49,980.70, 68,975.21 and 27,321.20

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Solution

The fourth proportional to 49,980.70, 68,975.21 and 27,321.20 is: 37,704.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,980.70 : 68,975.21 = 27,321.20 : x
  2. Step 2: Convert to fraction form
    49,980.70/68,975.21 = 27,321.20/x
  3. Step 3: Cross multiply
    49,980.70x = 68,975.21 × 27,321.20
  4. Step 4: Simplify right side
    49,980.70x = 1,884,485,507.45
  5. Step 5: Solve for x
    x = 1,884,485,507.45/49,980.70
  6. Step 6: Final answer
    x = 37,704.26

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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.