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Finding the Fourth Proportional to 17,581.90, 26,372.96 and 7,193.65

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Solution

The fourth proportional to 17,581.90, 26,372.96 and 7,193.65 is: 10,790.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,581.90 : 26,372.96 = 7,193.65 : x
  2. Step 2: Convert to fraction form
    17,581.90/26,372.96 = 7,193.65/x
  3. Step 3: Cross multiply
    17,581.90x = 26,372.96 × 7,193.65
  4. Step 4: Simplify right side
    17,581.90x = 189,717,843.70
  5. Step 5: Solve for x
    x = 189,717,843.70/17,581.90
  6. Step 6: Final answer
    x = 10,790.52

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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.