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Finding the Fourth Proportional to 66,591.84, 91,892.64 and 36,371.04

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Solution

The fourth proportional to 66,591.84, 91,892.64 and 36,371.04 is: 50,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,591.84 : 91,892.64 = 36,371.04 : x
  2. Step 2: Convert to fraction form
    66,591.84/91,892.64 = 36,371.04/x
  3. Step 3: Cross multiply
    66,591.84x = 91,892.64 × 36,371.04
  4. Step 4: Simplify right side
    66,591.84x = 3,342,230,885.15
  5. Step 5: Solve for x
    x = 3,342,230,885.15/66,591.84
  6. Step 6: Final answer
    x = 50,189.80

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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.