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Finding the Fourth Proportional to 17,265.81, 25,879.12 and 15,181.78

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Solution

The fourth proportional to 17,265.81, 25,879.12 and 15,181.78 is: 22,755.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,265.81 : 25,879.12 = 15,181.78 : x
  2. Step 2: Convert to fraction form
    17,265.81/25,879.12 = 15,181.78/x
  3. Step 3: Cross multiply
    17,265.81x = 25,879.12 × 15,181.78
  4. Step 4: Simplify right side
    17,265.81x = 392,891,106.43
  5. Step 5: Solve for x
    x = 392,891,106.43/17,265.81
  6. Step 6: Final answer
    x = 22,755.44

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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.