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Finding the Fourth Proportional to 37,906.80, 56,867.49 and 11,611.77

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Solution

The fourth proportional to 37,906.80, 56,867.49 and 11,611.77 is: 17,419.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,906.80 : 56,867.49 = 11,611.77 : x
  2. Step 2: Convert to fraction form
    37,906.80/56,867.49 = 11,611.77/x
  3. Step 3: Cross multiply
    37,906.80x = 56,867.49 × 11,611.77
  4. Step 4: Simplify right side
    37,906.80x = 660,332,214.36
  5. Step 5: Solve for x
    x = 660,332,214.36/37,906.80
  6. Step 6: Final answer
    x = 17,419.89

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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.