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Finding the Fourth Proportional to 14,996.63, 20,695.34 and 8,372.63

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Solution

The fourth proportional to 14,996.63, 20,695.34 and 8,372.63 is: 11,554.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,996.63 : 20,695.34 = 8,372.63 : x
  2. Step 2: Convert to fraction form
    14,996.63/20,695.34 = 8,372.63/x
  3. Step 3: Cross multiply
    14,996.63x = 20,695.34 × 8,372.63
  4. Step 4: Simplify right side
    14,996.63x = 173,274,342.00
  5. Step 5: Solve for x
    x = 173,274,342.00/14,996.63
  6. Step 6: Final answer
    x = 11,554.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.