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Finding the Fourth Proportional to 18,057.88, 27,076.89 and 5,574.47

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Solution

The fourth proportional to 18,057.88, 27,076.89 and 5,574.47 is: 8,358.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,057.88 : 27,076.89 = 5,574.47 : x
  2. Step 2: Convert to fraction form
    18,057.88/27,076.89 = 5,574.47/x
  3. Step 3: Cross multiply
    18,057.88x = 27,076.89 × 5,574.47
  4. Step 4: Simplify right side
    18,057.88x = 150,939,175.61
  5. Step 5: Solve for x
    x = 150,939,175.61/18,057.88
  6. Step 6: Final answer
    x = 8,358.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.