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Finding the Fourth Proportional to 17,880.85, 26,819.70 and 8,017.48

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Solution

The fourth proportional to 17,880.85, 26,819.70 and 8,017.48 is: 12,025.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,880.85 : 26,819.70 = 8,017.48 : x
  2. Step 2: Convert to fraction form
    17,880.85/26,819.70 = 8,017.48/x
  3. Step 3: Cross multiply
    17,880.85x = 26,819.70 × 8,017.48
  4. Step 4: Simplify right side
    17,880.85x = 215,026,408.36
  5. Step 5: Solve for x
    x = 215,026,408.36/17,880.85
  6. Step 6: Final answer
    x = 12,025.51

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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.