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Finding the Fourth Proportional to 11,361.80, 17,016.25 and 10,967.69

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Solution

The fourth proportional to 11,361.80, 17,016.25 and 10,967.69 is: 16,426.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,361.80 : 17,016.25 = 10,967.69 : x
  2. Step 2: Convert to fraction form
    11,361.80/17,016.25 = 10,967.69/x
  3. Step 3: Cross multiply
    11,361.80x = 17,016.25 × 10,967.69
  4. Step 4: Simplify right side
    11,361.80x = 186,628,925.78
  5. Step 5: Solve for x
    x = 186,628,925.78/11,361.80
  6. Step 6: Final answer
    x = 16,426.00

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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.