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Finding the Third Proportional to 21,174.75 and 45,447.75

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Solution

The third proportional to 21,174.75 and 45,447.75 is: 97,545.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,174.75 : 45,447.75 = 45,447.75 : x
  2. Step 2: Convert to fraction form
    21,174.75/45,447.75 = 45,447.75/x
  3. Step 3: Cross multiply
    21,174.75x = 45,447.75 × 45,447.75
  4. Step 4: Simplify right side
    21,174.75x = 2,065,497,980.06
  5. Step 5: Solve for x
    x = 2,065,497,980.06/21,174.75
  6. Step 6: Final answer
    x = 97,545.33

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.