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Finding the Fourth Proportional to 11,363.55, 17,018.87 and 10,969.44

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Solution

The fourth proportional to 11,363.55, 17,018.87 and 10,969.44 is: 16,428.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,363.55 : 17,018.87 = 10,969.44 : x
  2. Step 2: Convert to fraction form
    11,363.55/17,018.87 = 10,969.44/x
  3. Step 3: Cross multiply
    11,363.55x = 17,018.87 × 10,969.44
  4. Step 4: Simplify right side
    11,363.55x = 186,687,473.33
  5. Step 5: Solve for x
    x = 186,687,473.33/11,363.55
  6. Step 6: Final answer
    x = 16,428.62

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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.