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Finding the Fourth Proportional to 17,873.26, 26,786.65 and 8,516.31

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Solution

The fourth proportional to 17,873.26, 26,786.65 and 8,516.31 is: 12,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,873.26 : 26,786.65 = 8,516.31 : x
  2. Step 2: Convert to fraction form
    17,873.26/26,786.65 = 8,516.31/x
  3. Step 3: Cross multiply
    17,873.26x = 26,786.65 × 8,516.31
  4. Step 4: Simplify right side
    17,873.26x = 228,123,535.50
  5. Step 5: Solve for x
    x = 228,123,535.50/17,873.26
  6. Step 6: Final answer
    x = 12,763.40

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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.