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Finding the Fourth Proportional to 17,709.80, 26,581.10 and 8,950.84

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Solution

The fourth proportional to 17,709.80, 26,581.10 and 8,950.84 is: 13,434.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,709.80 : 26,581.10 = 8,950.84 : x
  2. Step 2: Convert to fraction form
    17,709.80/26,581.10 = 8,950.84/x
  3. Step 3: Cross multiply
    17,709.80x = 26,581.10 × 8,950.84
  4. Step 4: Simplify right side
    17,709.80x = 237,923,173.12
  5. Step 5: Solve for x
    x = 237,923,173.12/17,709.80
  6. Step 6: Final answer
    x = 13,434.55

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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.