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Finding the Fourth Proportional to 66,250.52, 91,428.14 and 37,961.67

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Solution

The fourth proportional to 66,250.52, 91,428.14 and 37,961.67 is: 52,388.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,250.52 : 91,428.14 = 37,961.67 : x
  2. Step 2: Convert to fraction form
    66,250.52/91,428.14 = 37,961.67/x
  3. Step 3: Cross multiply
    66,250.52x = 91,428.14 × 37,961.67
  4. Step 4: Simplify right side
    66,250.52x = 3,470,764,879.39
  5. Step 5: Solve for x
    x = 3,470,764,879.39/66,250.52
  6. Step 6: Final answer
    x = 52,388.49

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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.