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Finding the Fourth Proportional to 11,201.36, 16,805.68 and 7,313.36

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Solution

The fourth proportional to 11,201.36, 16,805.68 and 7,313.36 is: 10,972.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,201.36 : 16,805.68 = 7,313.36 : x
  2. Step 2: Convert to fraction form
    11,201.36/16,805.68 = 7,313.36/x
  3. Step 3: Cross multiply
    11,201.36x = 16,805.68 × 7,313.36
  4. Step 4: Simplify right side
    11,201.36x = 122,905,987.88
  5. Step 5: Solve for x
    x = 122,905,987.88/11,201.36
  6. Step 6: Final answer
    x = 10,972.42

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1.5x scale

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.