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Finding the Third Proportional to 87,896.50 and 189,482

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Solution

The third proportional to 87,896.50 and 189,482 is: 408,473.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,896.50 : 189,482 = 189,482 : x
  2. Step 2: Convert to fraction form
    87,896.50/189,482 = 189,482/x
  3. Step 3: Cross multiply
    87,896.50x = 189,482 × 189,482
  4. Step 4: Simplify right side
    87,896.50x = 35,903,428,324
  5. Step 5: Solve for x
    x = 35,903,428,324/87,896.50
  6. Step 6: Final answer
    x = 408,473.92

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.