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Finding the Fourth Proportional to 66,584.32, 91,885.44 and 36,369.28

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Solution

The fourth proportional to 66,584.32, 91,885.44 and 36,369.28 is: 50,189.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,584.32 : 91,885.44 = 36,369.28 : x
  2. Step 2: Convert to fraction form
    66,584.32/91,885.44 = 36,369.28/x
  3. Step 3: Cross multiply
    66,584.32x = 91,885.44 × 36,369.28
  4. Step 4: Simplify right side
    66,584.32x = 3,341,807,295.28
  5. Step 5: Solve for x
    x = 3,341,807,295.28/66,584.32
  6. Step 6: Final answer
    x = 50,189.10

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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.