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Finding the Fourth Proportional to 66,662.88, 91,998.09 and 37,982.94

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Solution

The fourth proportional to 66,662.88, 91,998.09 and 37,982.94 is: 52,418.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,662.88 : 91,998.09 = 37,982.94 : x
  2. Step 2: Convert to fraction form
    66,662.88/91,998.09 = 37,982.94/x
  3. Step 3: Cross multiply
    66,662.88x = 91,998.09 × 37,982.94
  4. Step 4: Simplify right side
    66,662.88x = 3,494,357,932.58
  5. Step 5: Solve for x
    x = 3,494,357,932.58/66,662.88
  6. Step 6: Final answer
    x = 52,418.35

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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.