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Finding the Fourth Proportional to 11,757.45, 17,636.19 and 3,971.73

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Solution

The fourth proportional to 11,757.45, 17,636.19 and 3,971.73 is: 5,957.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,757.45 : 17,636.19 = 3,971.73 : x
  2. Step 2: Convert to fraction form
    11,757.45/17,636.19 = 3,971.73/x
  3. Step 3: Cross multiply
    11,757.45x = 17,636.19 × 3,971.73
  4. Step 4: Simplify right side
    11,757.45x = 70,046,184.91
  5. Step 5: Solve for x
    x = 70,046,184.91/11,757.45
  6. Step 6: Final answer
    x = 5,957.60

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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.