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Finding the Fourth Proportional to 66,410.27, 91,643.51 and 36,194.96

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Solution

The fourth proportional to 66,410.27, 91,643.51 and 36,194.96 is: 49,947.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,410.27 : 91,643.51 = 36,194.96 : x
  2. Step 2: Convert to fraction form
    66,410.27/91,643.51 = 36,194.96/x
  3. Step 3: Cross multiply
    66,410.27x = 91,643.51 × 36,194.96
  4. Step 4: Simplify right side
    66,410.27x = 3,317,032,539.52
  5. Step 5: Solve for x
    x = 3,317,032,539.52/66,410.27
  6. Step 6: Final answer
    x = 49,947.59

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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.