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Finding the Fourth Proportional to 12,086.92, 18,113.10 and 6,882.04

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Solution

The fourth proportional to 12,086.92, 18,113.10 and 6,882.04 is: 10,313.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,086.92 : 18,113.10 = 6,882.04 : x
  2. Step 2: Convert to fraction form
    12,086.92/18,113.10 = 6,882.04/x
  3. Step 3: Cross multiply
    12,086.92x = 18,113.10 × 6,882.04
  4. Step 4: Simplify right side
    12,086.92x = 124,655,078.72
  5. Step 5: Solve for x
    x = 124,655,078.72/12,086.92
  6. Step 6: Final answer
    x = 10,313.22

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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.