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Finding the Fourth Proportional to 18,648.26, 27,955.80 and 6,799.80

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Solution

The fourth proportional to 18,648.26, 27,955.80 and 6,799.80 is: 10,193.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,648.26 : 27,955.80 = 6,799.80 : x
  2. Step 2: Convert to fraction form
    18,648.26/27,955.80 = 6,799.80/x
  3. Step 3: Cross multiply
    18,648.26x = 27,955.80 × 6,799.80
  4. Step 4: Simplify right side
    18,648.26x = 190,093,796.42
  5. Step 5: Solve for x
    x = 190,093,796.42/18,648.26
  6. Step 6: Final answer
    x = 10,193.65

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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.