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Finding the Fourth Proportional to 18,800.10, 25,944.13 and 11,246.74

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Solution

The fourth proportional to 18,800.10, 25,944.13 and 11,246.74 is: 15,520.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,800.10 : 25,944.13 = 11,246.74 : x
  2. Step 2: Convert to fraction form
    18,800.10/25,944.13 = 11,246.74/x
  3. Step 3: Cross multiply
    18,800.10x = 25,944.13 × 11,246.74
  4. Step 4: Simplify right side
    18,800.10x = 291,786,949.50
  5. Step 5: Solve for x
    x = 291,786,949.50/18,800.10
  6. Step 6: Final answer
    x = 15,520.50

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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.