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Finding the Fourth Proportional to 6,609.80, 9,914.99 and 2,713.88

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Solution

The fourth proportional to 6,609.80, 9,914.99 and 2,713.88 is: 4,070.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.80 : 9,914.99 = 2,713.88 : x
  2. Step 2: Convert to fraction form
    6,609.80/9,914.99 = 2,713.88/x
  3. Step 3: Cross multiply
    6,609.80x = 9,914.99 × 2,713.88
  4. Step 4: Simplify right side
    6,609.80x = 26,908,029.92
  5. Step 5: Solve for x
    x = 26,908,029.92/6,609.80
  6. Step 6: Final answer
    x = 4,070.93

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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.