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Finding the Fourth Proportional to 18,047.96, 27,044.02 and 12,512.12

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Solution

The fourth proportional to 18,047.96, 27,044.02 and 12,512.12 is: 18,748.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,047.96 : 27,044.02 = 12,512.12 : x
  2. Step 2: Convert to fraction form
    18,047.96/27,044.02 = 12,512.12/x
  3. Step 3: Cross multiply
    18,047.96x = 27,044.02 × 12,512.12
  4. Step 4: Simplify right side
    18,047.96x = 338,378,023.52
  5. Step 5: Solve for x
    x = 338,378,023.52/18,047.96
  6. Step 6: Final answer
    x = 18,748.82

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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.