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Finding the Fourth Proportional to 21,662.76, 29,896.44 and 12,233.04

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Solution

The fourth proportional to 21,662.76, 29,896.44 and 12,233.04 is: 16,882.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,662.76 : 29,896.44 = 12,233.04 : x
  2. Step 2: Convert to fraction form
    21,662.76/29,896.44 = 12,233.04/x
  3. Step 3: Cross multiply
    21,662.76x = 29,896.44 × 12,233.04
  4. Step 4: Simplify right side
    21,662.76x = 365,724,346.38
  5. Step 5: Solve for x
    x = 365,724,346.38/21,662.76
  6. Step 6: Final answer
    x = 16,882.63

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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.