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Finding the Fourth Proportional to 47,980.90, 66,231.90 and 37,745.44

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Solution

The fourth proportional to 47,980.90, 66,231.90 and 37,745.44 is: 52,103.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,980.90 : 66,231.90 = 37,745.44 : x
  2. Step 2: Convert to fraction form
    47,980.90/66,231.90 = 37,745.44/x
  3. Step 3: Cross multiply
    47,980.90x = 66,231.90 × 37,745.44
  4. Step 4: Simplify right side
    47,980.90x = 2,499,952,207.54
  5. Step 5: Solve for x
    x = 2,499,952,207.54/47,980.90
  6. Step 6: Final answer
    x = 52,103.07

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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.