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Finding the Fourth Proportional to 10,892.78, 16,344.30 and 5,351.30

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Solution

The fourth proportional to 10,892.78, 16,344.30 and 5,351.30 is: 8,029.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,892.78 : 16,344.30 = 5,351.30 : x
  2. Step 2: Convert to fraction form
    10,892.78/16,344.30 = 5,351.30/x
  3. Step 3: Cross multiply
    10,892.78x = 16,344.30 × 5,351.30
  4. Step 4: Simplify right side
    10,892.78x = 87,463,252.59
  5. Step 5: Solve for x
    x = 87,463,252.59/10,892.78
  6. Step 6: Final answer
    x = 8,029.47

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1.5x scale

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.