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Finding the Fourth Proportional to 8,675.74, 11,963.19 and 8,493.49

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Solution

The fourth proportional to 8,675.74, 11,963.19 and 8,493.49 is: 11,711.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,675.74 : 11,963.19 = 8,493.49 : x
  2. Step 2: Convert to fraction form
    8,675.74/11,963.19 = 8,493.49/x
  3. Step 3: Cross multiply
    8,675.74x = 11,963.19 × 8,493.49
  4. Step 4: Simplify right side
    8,675.74x = 101,609,234.63
  5. Step 5: Solve for x
    x = 101,609,234.63/8,675.74
  6. Step 6: Final answer
    x = 11,711.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.