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Finding the Third Proportional to 215,783.13 and 326,673.38

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Solution

The third proportional to 215,783.13 and 326,673.38 is: 494,549.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,783.13 : 326,673.38 = 326,673.38 : x
  2. Step 2: Convert to fraction form
    215,783.13/326,673.38 = 326,673.38/x
  3. Step 3: Cross multiply
    215,783.13x = 326,673.38 × 326,673.38
  4. Step 4: Simplify right side
    215,783.13x = 106,715,493,933.89
  5. Step 5: Solve for x
    x = 106,715,493,933.89/215,783.13
  6. Step 6: Final answer
    x = 494,549.77

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.