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Finding the Fourth Proportional to 18,841.50, 25,998.24 and 10,882.20

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Solution

The fourth proportional to 18,841.50, 25,998.24 and 10,882.20 is: 15,015.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,841.50 : 25,998.24 = 10,882.20 : x
  2. Step 2: Convert to fraction form
    18,841.50/25,998.24 = 10,882.20/x
  3. Step 3: Cross multiply
    18,841.50x = 25,998.24 × 10,882.20
  4. Step 4: Simplify right side
    18,841.50x = 282,918,047.33
  5. Step 5: Solve for x
    x = 282,918,047.33/18,841.50
  6. Step 6: Final answer
    x = 15,015.69

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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.