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Finding the Fourth Proportional to 13,676.73, 20,515.07 and 4,442.73

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Solution

The fourth proportional to 13,676.73, 20,515.07 and 4,442.73 is: 6,664.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676.73 : 20,515.07 = 4,442.73 : x
  2. Step 2: Convert to fraction form
    13,676.73/20,515.07 = 4,442.73/x
  3. Step 3: Cross multiply
    13,676.73x = 20,515.07 × 4,442.73
  4. Step 4: Simplify right side
    13,676.73x = 91,142,894.73
  5. Step 5: Solve for x
    x = 91,142,894.73/13,676.73
  6. Step 6: Final answer
    x = 6,664.09

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1.5x scale

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.