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Finding the Fourth Proportional to 54,307.64, 74,944.42 and 33,086.92

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Solution

The fourth proportional to 54,307.64, 74,944.42 and 33,086.92 is: 45,659.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,307.64 : 74,944.42 = 33,086.92 : x
  2. Step 2: Convert to fraction form
    54,307.64/74,944.42 = 33,086.92/x
  3. Step 3: Cross multiply
    54,307.64x = 74,944.42 × 33,086.92
  4. Step 4: Simplify right side
    54,307.64x = 2,479,680,028.99
  5. Step 5: Solve for x
    x = 2,479,680,028.99/54,307.64
  6. Step 6: Final answer
    x = 45,659.88

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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.