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Finding the Fourth Proportional to 66,165.22, 91,306.89 and 35,951.02

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Solution

The fourth proportional to 66,165.22, 91,306.89 and 35,951.02 is: 49,611.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,165.22 : 91,306.89 = 35,951.02 : x
  2. Step 2: Convert to fraction form
    66,165.22/91,306.89 = 35,951.02/x
  3. Step 3: Cross multiply
    66,165.22x = 91,306.89 × 35,951.02
  4. Step 4: Simplify right side
    66,165.22x = 3,282,575,828.53
  5. Step 5: Solve for x
    x = 3,282,575,828.53/66,165.22
  6. Step 6: Final answer
    x = 49,611.80

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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.