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Finding the Fourth Proportional to 18,610.80, 25,996.80 and 18,610.80

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Solution

The fourth proportional to 18,610.80, 25,996.80 and 18,610.80 is: 25,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,610.80 : 25,996.80 = 18,610.80 : x
  2. Step 2: Convert to fraction form
    18,610.80/25,996.80 = 18,610.80/x
  3. Step 3: Cross multiply
    18,610.80x = 25,996.80 × 18,610.80
  4. Step 4: Simplify right side
    18,610.80x = 483,821,245.44
  5. Step 5: Solve for x
    x = 483,821,245.44/18,610.80
  6. Step 6: Final answer
    x = 25,996.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.