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Finding the Third Proportional to 20,647.13 and 45,249.75

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Solution

The third proportional to 20,647.13 and 45,249.75 is: 99,168.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647.13 : 45,249.75 = 45,249.75 : x
  2. Step 2: Convert to fraction form
    20,647.13/45,249.75 = 45,249.75/x
  3. Step 3: Cross multiply
    20,647.13x = 45,249.75 × 45,249.75
  4. Step 4: Simplify right side
    20,647.13x = 2,047,539,875.06
  5. Step 5: Solve for x
    x = 2,047,539,875.06/20,647.13
  6. Step 6: Final answer
    x = 99,168.28

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.