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Finding the Fourth Proportional to 66,458.67, 91,714.70 and 36,245.27

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Solution

The fourth proportional to 66,458.67, 91,714.70 and 36,245.27 is: 50,019.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,458.67 : 91,714.70 = 36,245.27 : x
  2. Step 2: Convert to fraction form
    66,458.67/91,714.70 = 36,245.27/x
  3. Step 3: Cross multiply
    66,458.67x = 91,714.70 × 36,245.27
  4. Step 4: Simplify right side
    66,458.67x = 3,324,224,064.47
  5. Step 5: Solve for x
    x = 3,324,224,064.47/66,458.67
  6. Step 6: Final answer
    x = 50,019.42

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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.