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Finding the Fourth Proportional to 66,522.88, 91,795.04 and 36,712.96

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Solution

The fourth proportional to 66,522.88, 91,795.04 and 36,712.96 is: 50,660.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,522.88 : 91,795.04 = 36,712.96 : x
  2. Step 2: Convert to fraction form
    66,522.88/91,795.04 = 36,712.96/x
  3. Step 3: Cross multiply
    66,522.88x = 91,795.04 × 36,712.96
  4. Step 4: Simplify right side
    66,522.88x = 3,370,067,631.72
  5. Step 5: Solve for x
    x = 3,370,067,631.72/66,522.88
  6. Step 6: Final answer
    x = 50,660.28

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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.