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Finding the Fourth Proportional to 21,910.56, 32,868.08 and 8,060.96

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Solution

The fourth proportional to 21,910.56, 32,868.08 and 8,060.96 is: 12,092.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,910.56 : 32,868.08 = 8,060.96 : x
  2. Step 2: Convert to fraction form
    21,910.56/32,868.08 = 8,060.96/x
  3. Step 3: Cross multiply
    21,910.56x = 32,868.08 × 8,060.96
  4. Step 4: Simplify right side
    21,910.56x = 264,948,278.16
  5. Step 5: Solve for x
    x = 264,948,278.16/21,910.56
  6. Step 6: Final answer
    x = 12,092.26

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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.