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Finding the Fourth Proportional to 17,309.88, 25,967.88 and 8,544.78

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Solution

The fourth proportional to 17,309.88, 25,967.88 and 8,544.78 is: 12,818.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,309.88 : 25,967.88 = 8,544.78 : x
  2. Step 2: Convert to fraction form
    17,309.88/25,967.88 = 8,544.78/x
  3. Step 3: Cross multiply
    17,309.88x = 25,967.88 × 8,544.78
  4. Step 4: Simplify right side
    17,309.88x = 221,889,821.67
  5. Step 5: Solve for x
    x = 221,889,821.67/17,309.88
  6. Step 6: Final answer
    x = 12,818.68

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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.