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Finding the Fourth Proportional to 66,403.70, 91,634.17 and 37,723.27

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Solution

The fourth proportional to 66,403.70, 91,634.17 and 37,723.27 is: 52,056.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,403.70 : 91,634.17 = 37,723.27 : x
  2. Step 2: Convert to fraction form
    66,403.70/91,634.17 = 37,723.27/x
  3. Step 3: Cross multiply
    66,403.70x = 91,634.17 × 37,723.27
  4. Step 4: Simplify right side
    66,403.70x = 3,456,739,889.35
  5. Step 5: Solve for x
    x = 3,456,739,889.35/66,403.70
  6. Step 6: Final answer
    x = 52,056.44

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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.