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Finding the Fourth Proportional to 21,850.59, 32,780.75 and 6,267

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Solution

The fourth proportional to 21,850.59, 32,780.75 and 6,267 is: 9,401.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,850.59 : 32,780.75 = 6,267 : x
  2. Step 2: Convert to fraction form
    21,850.59/32,780.75 = 6,267/x
  3. Step 3: Cross multiply
    21,850.59x = 32,780.75 × 6,267
  4. Step 4: Simplify right side
    21,850.59x = 205,436,960.25
  5. Step 5: Solve for x
    x = 205,436,960.25/21,850.59
  6. Step 6: Final answer
    x = 9,401.90

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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.