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Finding the Fourth Proportional to 8,673.84, 13,009.68 and 2,829.96

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Solution

The fourth proportional to 8,673.84, 13,009.68 and 2,829.96 is: 4,244.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.84 : 13,009.68 = 2,829.96 : x
  2. Step 2: Convert to fraction form
    8,673.84/13,009.68 = 2,829.96/x
  3. Step 3: Cross multiply
    8,673.84x = 13,009.68 × 2,829.96
  4. Step 4: Simplify right side
    8,673.84x = 36,816,874.01
  5. Step 5: Solve for x
    x = 36,816,874.01/8,673.84
  6. Step 6: Final answer
    x = 4,244.59

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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.