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Finding the Fourth Proportional to 14,608.52, 21,932.22 and 7,687.88

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Solution

The fourth proportional to 14,608.52, 21,932.22 and 7,687.88 is: 11,542.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,608.52 : 21,932.22 = 7,687.88 : x
  2. Step 2: Convert to fraction form
    14,608.52/21,932.22 = 7,687.88/x
  3. Step 3: Cross multiply
    14,608.52x = 21,932.22 × 7,687.88
  4. Step 4: Simplify right side
    14,608.52x = 168,612,327.78
  5. Step 5: Solve for x
    x = 168,612,327.78/14,608.52
  6. Step 6: Final answer
    x = 11,542.05

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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.