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Finding the Fourth Proportional to 12,167.01, 16,790.09 and 6,861.11

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Solution

The fourth proportional to 12,167.01, 16,790.09 and 6,861.11 is: 9,468.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.01 : 16,790.09 = 6,861.11 : x
  2. Step 2: Convert to fraction form
    12,167.01/16,790.09 = 6,861.11/x
  3. Step 3: Cross multiply
    12,167.01x = 16,790.09 × 6,861.11
  4. Step 4: Simplify right side
    12,167.01x = 115,198,536.14
  5. Step 5: Solve for x
    x = 115,198,536.14/12,167.01
  6. Step 6: Final answer
    x = 9,468.11

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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.