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Finding the Fourth Proportional to 12,540.52, 18,813.96 and 8,849.96

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Solution

The fourth proportional to 12,540.52, 18,813.96 and 8,849.96 is: 13,277.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.52 : 18,813.96 = 8,849.96 : x
  2. Step 2: Convert to fraction form
    12,540.52/18,813.96 = 8,849.96/x
  3. Step 3: Cross multiply
    12,540.52x = 18,813.96 × 8,849.96
  4. Step 4: Simplify right side
    12,540.52x = 166,502,699.37
  5. Step 5: Solve for x
    x = 166,502,699.37/12,540.52
  6. Step 6: Final answer
    x = 13,277.18

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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.