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Finding the Fourth Proportional to 12,313.71, 16,992.05 and 9,667.44

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Solution

The fourth proportional to 12,313.71, 16,992.05 and 9,667.44 is: 13,340.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313.71 : 16,992.05 = 9,667.44 : x
  2. Step 2: Convert to fraction form
    12,313.71/16,992.05 = 9,667.44/x
  3. Step 3: Cross multiply
    12,313.71x = 16,992.05 × 9,667.44
  4. Step 4: Simplify right side
    12,313.71x = 164,269,575.51
  5. Step 5: Solve for x
    x = 164,269,575.51/12,313.71
  6. Step 6: Final answer
    x = 13,340.38

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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.