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Finding the Fourth Proportional to 12,759.76, 19,092.21 and 11,192.41

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Solution

The fourth proportional to 12,759.76, 19,092.21 and 11,192.41 is: 16,747.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,759.76 : 19,092.21 = 11,192.41 : x
  2. Step 2: Convert to fraction form
    12,759.76/19,092.21 = 11,192.41/x
  3. Step 3: Cross multiply
    12,759.76x = 19,092.21 × 11,192.41
  4. Step 4: Simplify right side
    12,759.76x = 213,687,842.13
  5. Step 5: Solve for x
    x = 213,687,842.13/12,759.76
  6. Step 6: Final answer
    x = 16,747.01

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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.