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Finding the Fourth Proportional to 37,960.86, 56,975.86 and 20,206.44

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Solution

The fourth proportional to 37,960.86, 56,975.86 and 20,206.44 is: 30,328.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,960.86 : 56,975.86 = 20,206.44 : x
  2. Step 2: Convert to fraction form
    37,960.86/56,975.86 = 20,206.44/x
  3. Step 3: Cross multiply
    37,960.86x = 56,975.86 × 20,206.44
  4. Step 4: Simplify right side
    37,960.86x = 1,151,279,296.54
  5. Step 5: Solve for x
    x = 1,151,279,296.54/37,960.86
  6. Step 6: Final answer
    x = 30,328.06

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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.