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Finding the Fourth Proportional to 8,673.75, 13,017.99 and 3,412.44

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Solution

The fourth proportional to 8,673.75, 13,017.99 and 3,412.44 is: 5,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.75 : 13,017.99 = 3,412.44 : x
  2. Step 2: Convert to fraction form
    8,673.75/13,017.99 = 3,412.44/x
  3. Step 3: Cross multiply
    8,673.75x = 13,017.99 × 3,412.44
  4. Step 4: Simplify right side
    8,673.75x = 44,423,044.71
  5. Step 5: Solve for x
    x = 44,423,044.71/8,673.75
  6. Step 6: Final answer
    x = 5,121.55

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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.