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Finding the Fourth Proportional to 54,982.88, 82,476.22 and 18,958.89

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Solution

The fourth proportional to 54,982.88, 82,476.22 and 18,958.89 is: 28,438.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,982.88 : 82,476.22 = 18,958.89 : x
  2. Step 2: Convert to fraction form
    54,982.88/82,476.22 = 18,958.89/x
  3. Step 3: Cross multiply
    54,982.88x = 82,476.22 × 18,958.89
  4. Step 4: Simplify right side
    54,982.88x = 1,563,657,582.60
  5. Step 5: Solve for x
    x = 1,563,657,582.60/54,982.88
  6. Step 6: Final answer
    x = 28,438.99

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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.