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Finding the Fourth Proportional to 17,747.10, 26,620.65 and 13,340.70

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Solution

The fourth proportional to 17,747.10, 26,620.65 and 13,340.70 is: 20,011.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,747.10 : 26,620.65 = 13,340.70 : x
  2. Step 2: Convert to fraction form
    17,747.10/26,620.65 = 13,340.70/x
  3. Step 3: Cross multiply
    17,747.10x = 26,620.65 × 13,340.70
  4. Step 4: Simplify right side
    17,747.10x = 355,138,105.46
  5. Step 5: Solve for x
    x = 355,138,105.46/17,747.10
  6. Step 6: Final answer
    x = 20,011.05

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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.