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Finding the Third Proportional to 3,655.13 and 7,932.38

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Solution

The third proportional to 3,655.13 and 7,932.38 is: 17,214.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655.13 : 7,932.38 = 7,932.38 : x
  2. Step 2: Convert to fraction form
    3,655.13/7,932.38 = 7,932.38/x
  3. Step 3: Cross multiply
    3,655.13x = 7,932.38 × 7,932.38
  4. Step 4: Simplify right side
    3,655.13x = 62,922,573.14
  5. Step 5: Solve for x
    x = 62,922,573.14/3,655.13
  6. Step 6: Final answer
    x = 17,214.89

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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.