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Finding the Fourth Proportional to 11,405.62, 17,196.17 and 11,201.50

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Solution

The fourth proportional to 11,405.62, 17,196.17 and 11,201.50 is: 16,888.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,405.62 : 17,196.17 = 11,201.50 : x
  2. Step 2: Convert to fraction form
    11,405.62/17,196.17 = 11,201.50/x
  3. Step 3: Cross multiply
    11,405.62x = 17,196.17 × 11,201.50
  4. Step 4: Simplify right side
    11,405.62x = 192,622,898.26
  5. Step 5: Solve for x
    x = 192,622,898.26/11,405.62
  6. Step 6: Final answer
    x = 16,888.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.