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Finding the Fourth Proportional to 17,880.52, 26,819.42 and 7,347.68

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Solution

The fourth proportional to 17,880.52, 26,819.42 and 7,347.68 is: 11,020.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,880.52 : 26,819.42 = 7,347.68 : x
  2. Step 2: Convert to fraction form
    17,880.52/26,819.42 = 7,347.68/x
  3. Step 3: Cross multiply
    17,880.52x = 26,819.42 × 7,347.68
  4. Step 4: Simplify right side
    17,880.52x = 197,060,515.95
  5. Step 5: Solve for x
    x = 197,060,515.95/17,880.52
  6. Step 6: Final answer
    x = 11,020.96

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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.