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Finding the Fourth Proportional to 66,076.85, 91,186.70 and 35,862.44

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Solution

The fourth proportional to 66,076.85, 91,186.70 and 35,862.44 is: 49,490.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,076.85 : 91,186.70 = 35,862.44 : x
  2. Step 2: Convert to fraction form
    66,076.85/91,186.70 = 35,862.44/x
  3. Step 3: Cross multiply
    66,076.85x = 91,186.70 × 35,862.44
  4. Step 4: Simplify right side
    66,076.85x = 3,270,177,191.27
  5. Step 5: Solve for x
    x = 3,270,177,191.27/66,076.85
  6. Step 6: Final answer
    x = 49,490.52

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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.