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Finding the Fourth Proportional to 11,882.63, 16,398.03 and 7,167.35

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Solution

The fourth proportional to 11,882.63, 16,398.03 and 7,167.35 is: 9,890.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,882.63 : 16,398.03 = 7,167.35 : x
  2. Step 2: Convert to fraction form
    11,882.63/16,398.03 = 7,167.35/x
  3. Step 3: Cross multiply
    11,882.63x = 16,398.03 × 7,167.35
  4. Step 4: Simplify right side
    11,882.63x = 117,530,338.33
  5. Step 5: Solve for x
    x = 117,530,338.33/11,882.63
  6. Step 6: Final answer
    x = 9,890.94

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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.