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Finding the Third Proportional to 11,686.78 and 25,332.75

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Solution

The third proportional to 11,686.78 and 25,332.75 is: 54,912.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,686.78 : 25,332.75 = 25,332.75 : x
  2. Step 2: Convert to fraction form
    11,686.78/25,332.75 = 25,332.75/x
  3. Step 3: Cross multiply
    11,686.78x = 25,332.75 × 25,332.75
  4. Step 4: Simplify right side
    11,686.78x = 641,748,222.56
  5. Step 5: Solve for x
    x = 641,748,222.56/11,686.78
  6. Step 6: Final answer
    x = 54,912.32

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.