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Finding the Fourth Proportional to 37,889.48, 56,761.48 and 21,198.92

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Solution

The fourth proportional to 37,889.48, 56,761.48 and 21,198.92 is: 31,757.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,889.48 : 56,761.48 = 21,198.92 : x
  2. Step 2: Convert to fraction form
    37,889.48/56,761.48 = 21,198.92/x
  3. Step 3: Cross multiply
    37,889.48x = 56,761.48 × 21,198.92
  4. Step 4: Simplify right side
    37,889.48x = 1,203,282,073.60
  5. Step 5: Solve for x
    x = 1,203,282,073.60/37,889.48
  6. Step 6: Final answer
    x = 31,757.68

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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.