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Finding the Fourth Proportional to 66,468.14, 91,723.48 and 36,660.14

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Solution

The fourth proportional to 66,468.14, 91,723.48 and 36,660.14 is: 50,589.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,468.14 : 91,723.48 = 36,660.14 : x
  2. Step 2: Convert to fraction form
    66,468.14/91,723.48 = 36,660.14/x
  3. Step 3: Cross multiply
    66,468.14x = 91,723.48 × 36,660.14
  4. Step 4: Simplify right side
    66,468.14x = 3,362,595,618.09
  5. Step 5: Solve for x
    x = 3,362,595,618.09/66,468.14
  6. Step 6: Final answer
    x = 50,589.58

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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.