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Finding the Fourth Proportional to 6,609.63, 9,910.49 and 2,104.74

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Solution

The fourth proportional to 6,609.63, 9,910.49 and 2,104.74 is: 3,155.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.63 : 9,910.49 = 2,104.74 : x
  2. Step 2: Convert to fraction form
    6,609.63/9,910.49 = 2,104.74/x
  3. Step 3: Cross multiply
    6,609.63x = 9,910.49 × 2,104.74
  4. Step 4: Simplify right side
    6,609.63x = 20,858,994.20
  5. Step 5: Solve for x
    x = 20,858,994.20/6,609.63
  6. Step 6: Final answer
    x = 3,155.85

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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.