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Finding the Fourth Proportional to 8,609.80, 12,914.67 and 3,063.36

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Solution

The fourth proportional to 8,609.80, 12,914.67 and 3,063.36 is: 4,595.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,609.80 : 12,914.67 = 3,063.36 : x
  2. Step 2: Convert to fraction form
    8,609.80/12,914.67 = 3,063.36/x
  3. Step 3: Cross multiply
    8,609.80x = 12,914.67 × 3,063.36
  4. Step 4: Simplify right side
    8,609.80x = 39,562,283.49
  5. Step 5: Solve for x
    x = 39,562,283.49/8,609.80
  6. Step 6: Final answer
    x = 4,595.03

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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.