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Finding the Fourth Proportional to 13,960.50, 19,256.84 and 9,181

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Solution

The fourth proportional to 13,960.50, 19,256.84 and 9,181 is: 12,664.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,960.50 : 19,256.84 = 9,181 : x
  2. Step 2: Convert to fraction form
    13,960.50/19,256.84 = 9,181/x
  3. Step 3: Cross multiply
    13,960.50x = 19,256.84 × 9,181
  4. Step 4: Simplify right side
    13,960.50x = 176,797,048.04
  5. Step 5: Solve for x
    x = 176,797,048.04/13,960.50
  6. Step 6: Final answer
    x = 12,664.09

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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.