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Finding the Fourth Proportional to 37,991.86, 56,993.91 and 11,696.59

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Solution

The fourth proportional to 37,991.86, 56,993.91 and 11,696.59 is: 17,546.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,991.86 : 56,993.91 = 11,696.59 : x
  2. Step 2: Convert to fraction form
    37,991.86/56,993.91 = 11,696.59/x
  3. Step 3: Cross multiply
    37,991.86x = 56,993.91 × 11,696.59
  4. Step 4: Simplify right side
    37,991.86x = 666,634,397.77
  5. Step 5: Solve for x
    x = 666,634,397.77/37,991.86
  6. Step 6: Final answer
    x = 17,546.77

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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.