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Finding the Fourth Proportional to 18,167.25, 25,065.02 and 10,994.88

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Solution

The fourth proportional to 18,167.25, 25,065.02 and 10,994.88 is: 15,169.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,167.25 : 25,065.02 = 10,994.88 : x
  2. Step 2: Convert to fraction form
    18,167.25/25,065.02 = 10,994.88/x
  3. Step 3: Cross multiply
    18,167.25x = 25,065.02 × 10,994.88
  4. Step 4: Simplify right side
    18,167.25x = 275,586,789.26
  5. Step 5: Solve for x
    x = 275,586,789.26/18,167.25
  6. Step 6: Final answer
    x = 15,169.43

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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.