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Finding the Fourth Proportional to 14,616.66, 21,930.48 and 8,777.46

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Solution

The fourth proportional to 14,616.66, 21,930.48 and 8,777.46 is: 13,169.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,616.66 : 21,930.48 = 8,777.46 : x
  2. Step 2: Convert to fraction form
    14,616.66/21,930.48 = 8,777.46/x
  3. Step 3: Cross multiply
    14,616.66x = 21,930.48 × 8,777.46
  4. Step 4: Simplify right side
    14,616.66x = 192,493,910.98
  5. Step 5: Solve for x
    x = 192,493,910.98/14,616.66
  6. Step 6: Final answer
    x = 13,169.49

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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.