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Finding the Fourth Proportional to 12,892.84, 17,791.26 and 7,586.62

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Solution

The fourth proportional to 12,892.84, 17,791.26 and 7,586.62 is: 10,469.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892.84 : 17,791.26 = 7,586.62 : x
  2. Step 2: Convert to fraction form
    12,892.84/17,791.26 = 7,586.62/x
  3. Step 3: Cross multiply
    12,892.84x = 17,791.26 × 7,586.62
  4. Step 4: Simplify right side
    12,892.84x = 134,975,528.94
  5. Step 5: Solve for x
    x = 134,975,528.94/12,892.84
  6. Step 6: Final answer
    x = 10,469.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.