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Finding the Fourth Proportional to 18,785.00, 25,917.44 and 10,826.15

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Solution

The fourth proportional to 18,785.00, 25,917.44 and 10,826.15 is: 14,936.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785.00 : 25,917.44 = 10,826.15 : x
  2. Step 2: Convert to fraction form
    18,785.00/25,917.44 = 10,826.15/x
  3. Step 3: Cross multiply
    18,785.00x = 25,917.44 × 10,826.15
  4. Step 4: Simplify right side
    18,785.00x = 280,585,909.34
  5. Step 5: Solve for x
    x = 280,585,909.34/18,785.00
  6. Step 6: Final answer
    x = 14,936.70

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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.