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Finding the Fourth Proportional to 11,761.56, 17,628.12 and 4,363.56

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Solution

The fourth proportional to 11,761.56, 17,628.12 and 4,363.56 is: 6,540.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,761.56 : 17,628.12 = 4,363.56 : x
  2. Step 2: Convert to fraction form
    11,761.56/17,628.12 = 4,363.56/x
  3. Step 3: Cross multiply
    11,761.56x = 17,628.12 × 4,363.56
  4. Step 4: Simplify right side
    11,761.56x = 76,921,359.31
  5. Step 5: Solve for x
    x = 76,921,359.31/11,761.56
  6. Step 6: Final answer
    x = 6,540.06

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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.