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Finding the Fourth Proportional to 11,757.74, 17,631.40 and 5,512.71

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Solution

The fourth proportional to 11,757.74, 17,631.40 and 5,512.71 is: 8,266.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,757.74 : 17,631.40 = 5,512.71 : x
  2. Step 2: Convert to fraction form
    11,757.74/17,631.40 = 5,512.71/x
  3. Step 3: Cross multiply
    11,757.74x = 17,631.40 × 5,512.71
  4. Step 4: Simplify right side
    11,757.74x = 97,196,795.09
  5. Step 5: Solve for x
    x = 97,196,795.09/11,757.74
  6. Step 6: Final answer
    x = 8,266.62

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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.