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Finding the Fourth Proportional to 54,576, 75,318.39 and 33,080.58

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Solution

The fourth proportional to 54,576, 75,318.39 and 33,080.58 is: 45,653.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,576 : 75,318.39 = 33,080.58 : x
  2. Step 2: Convert to fraction form
    54,576/75,318.39 = 33,080.58/x
  3. Step 3: Cross multiply
    54,576x = 75,318.39 × 33,080.58
  4. Step 4: Simplify right side
    54,576x = 2,491,576,025.87
  5. Step 5: Solve for x
    x = 2,491,576,025.87/54,576
  6. Step 6: Final answer
    x = 45,653.33

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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.