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Finding the Fourth Proportional to 10,796.90, 16,179.46 and 5,243.90

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Solution

The fourth proportional to 10,796.90, 16,179.46 and 5,243.90 is: 7,858.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,796.90 : 16,179.46 = 5,243.90 : x
  2. Step 2: Convert to fraction form
    10,796.90/16,179.46 = 5,243.90/x
  3. Step 3: Cross multiply
    10,796.90x = 16,179.46 × 5,243.90
  4. Step 4: Simplify right side
    10,796.90x = 84,843,376.29
  5. Step 5: Solve for x
    x = 84,843,376.29/10,796.90
  6. Step 6: Final answer
    x = 7,858.13

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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.