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Finding the Fourth Proportional to 17,219.10, 25,844.82 and 8,460.30

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Solution

The fourth proportional to 17,219.10, 25,844.82 and 8,460.30 is: 12,698.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,219.10 : 25,844.82 = 8,460.30 : x
  2. Step 2: Convert to fraction form
    17,219.10/25,844.82 = 8,460.30/x
  3. Step 3: Cross multiply
    17,219.10x = 25,844.82 × 8,460.30
  4. Step 4: Simplify right side
    17,219.10x = 218,654,930.65
  5. Step 5: Solve for x
    x = 218,654,930.65/17,219.10
  6. Step 6: Final answer
    x = 12,698.39

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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.