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Finding the Fourth Proportional to 11,996.88, 17,996.84 and 4,100.90

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Solution

The fourth proportional to 11,996.88, 17,996.84 and 4,100.90 is: 6,151.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,996.88 : 17,996.84 = 4,100.90 : x
  2. Step 2: Convert to fraction form
    11,996.88/17,996.84 = 4,100.90/x
  3. Step 3: Cross multiply
    11,996.88x = 17,996.84 × 4,100.90
  4. Step 4: Simplify right side
    11,996.88x = 73,803,130.67
  5. Step 5: Solve for x
    x = 73,803,130.67/11,996.88
  6. Step 6: Final answer
    x = 6,151.86

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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.