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Finding the Fourth Proportional to 17,682.10, 26,519.91 and 7,151.56

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Solution

The fourth proportional to 17,682.10, 26,519.91 and 7,151.56 is: 10,726.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,682.10 : 26,519.91 = 7,151.56 : x
  2. Step 2: Convert to fraction form
    17,682.10/26,519.91 = 7,151.56/x
  3. Step 3: Cross multiply
    17,682.10x = 26,519.91 × 7,151.56
  4. Step 4: Simplify right side
    17,682.10x = 189,658,727.56
  5. Step 5: Solve for x
    x = 189,658,727.56/17,682.10
  6. Step 6: Final answer
    x = 10,726.03

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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.