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Finding the Fourth Proportional to 66,458.92, 91,712.16 and 36,244.48

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Solution

The fourth proportional to 66,458.92, 91,712.16 and 36,244.48 is: 50,016.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,458.92 : 91,712.16 = 36,244.48 : x
  2. Step 2: Convert to fraction form
    66,458.92/91,712.16 = 36,244.48/x
  3. Step 3: Cross multiply
    66,458.92x = 91,712.16 × 36,244.48
  4. Step 4: Simplify right side
    66,458.92x = 3,324,059,548.88
  5. Step 5: Solve for x
    x = 3,324,059,548.88/66,458.92
  6. Step 6: Final answer
    x = 50,016.76

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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.