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Finding the Fourth Proportional to 14,994.34, 20,693.05 and 8,279.96

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Solution

The fourth proportional to 14,994.34, 20,693.05 and 8,279.96 is: 11,426.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,994.34 : 20,693.05 = 8,279.96 : x
  2. Step 2: Convert to fraction form
    14,994.34/20,693.05 = 8,279.96/x
  3. Step 3: Cross multiply
    14,994.34x = 20,693.05 × 8,279.96
  4. Step 4: Simplify right side
    14,994.34x = 171,337,502.11
  5. Step 5: Solve for x
    x = 171,337,502.11/14,994.34
  6. Step 6: Final answer
    x = 11,426.81

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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.