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Finding the Fourth Proportional to 17,676.70, 26,495.61 and 7,282.78

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Solution

The fourth proportional to 17,676.70, 26,495.61 and 7,282.78 is: 10,916.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,676.70 : 26,495.61 = 7,282.78 : x
  2. Step 2: Convert to fraction form
    17,676.70/26,495.61 = 7,282.78/x
  3. Step 3: Cross multiply
    17,676.70x = 26,495.61 × 7,282.78
  4. Step 4: Simplify right side
    17,676.70x = 192,961,698.60
  5. Step 5: Solve for x
    x = 192,961,698.60/17,676.70
  6. Step 6: Final answer
    x = 10,916.16

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.