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Finding the Fourth Proportional to 66,283.45, 91,469.67 and 36,068.86

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Solution

The fourth proportional to 66,283.45, 91,469.67 and 36,068.86 is: 49,774.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,283.45 : 91,469.67 = 36,068.86 : x
  2. Step 2: Convert to fraction form
    66,283.45/91,469.67 = 36,068.86/x
  3. Step 3: Cross multiply
    66,283.45x = 91,469.67 × 36,068.86
  4. Step 4: Simplify right side
    66,283.45x = 3,299,206,721.48
  5. Step 5: Solve for x
    x = 3,299,206,721.48/66,283.45
  6. Step 6: Final answer
    x = 49,774.22

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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.