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Finding the Third Proportional to 10,729.13 and 21,448.13

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Solution

The third proportional to 10,729.13 and 21,448.13 is: 42,876.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,729.13 : 21,448.13 = 21,448.13 : x
  2. Step 2: Convert to fraction form
    10,729.13/21,448.13 = 21,448.13/x
  3. Step 3: Cross multiply
    10,729.13x = 21,448.13 × 21,448.13
  4. Step 4: Simplify right side
    10,729.13x = 460,022,066.02
  5. Step 5: Solve for x
    x = 460,022,066.02/10,729.13
  6. Step 6: Final answer
    x = 42,876.01

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Why These Related Problems?

These problems maintain the same ratio (2.00) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.