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Finding the Fourth Proportional to 11,954.54, 16,462.81 and 11,918.09

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Solution

The fourth proportional to 11,954.54, 16,462.81 and 11,918.09 is: 16,412.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,954.54 : 16,462.81 = 11,918.09 : x
  2. Step 2: Convert to fraction form
    11,954.54/16,462.81 = 11,918.09/x
  3. Step 3: Cross multiply
    11,954.54x = 16,462.81 × 11,918.09
  4. Step 4: Simplify right side
    11,954.54x = 196,205,307.29
  5. Step 5: Solve for x
    x = 196,205,307.29/11,954.54
  6. Step 6: Final answer
    x = 16,412.62

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1.5x scale

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.