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Finding the Fourth Proportional to 66,462.88, 91,716.24 and 36,654.88

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Solution

The fourth proportional to 66,462.88, 91,716.24 and 36,654.88 is: 50,582.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,462.88 : 91,716.24 = 36,654.88 : x
  2. Step 2: Convert to fraction form
    66,462.88/91,716.24 = 36,654.88/x
  3. Step 3: Cross multiply
    66,462.88x = 91,716.24 × 36,654.88
  4. Step 4: Simplify right side
    66,462.88x = 3,361,847,771.25
  5. Step 5: Solve for x
    x = 3,361,847,771.25/66,462.88
  6. Step 6: Final answer
    x = 50,582.34

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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.