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Finding the Fourth Proportional to 66,445.50, 91,696.31 and 37,760.64

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Solution

The fourth proportional to 66,445.50, 91,696.31 and 37,760.64 is: 52,110.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,445.50 : 91,696.31 = 37,760.64 : x
  2. Step 2: Convert to fraction form
    66,445.50/91,696.31 = 37,760.64/x
  3. Step 3: Cross multiply
    66,445.50x = 91,696.31 × 37,760.64
  4. Step 4: Simplify right side
    66,445.50x = 3,462,511,162.44
  5. Step 5: Solve for x
    x = 3,462,511,162.44/66,445.50
  6. Step 6: Final answer
    x = 52,110.54

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1.5x scale

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.