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Finding the Fourth Proportional to 66,494.88, 91,756.56 and 36,684.96

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Solution

The fourth proportional to 66,494.88, 91,756.56 and 36,684.96 is: 50,621.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,494.88 : 91,756.56 = 36,684.96 : x
  2. Step 2: Convert to fraction form
    66,494.88/91,756.56 = 36,684.96/x
  3. Step 3: Cross multiply
    66,494.88x = 91,756.56 × 36,684.96
  4. Step 4: Simplify right side
    66,494.88x = 3,366,085,733.34
  5. Step 5: Solve for x
    x = 3,366,085,733.34/66,494.88
  6. Step 6: Final answer
    x = 50,621.73

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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.