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Finding the Third Proportional to 18,781.13 and 29,248.31

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Solution

The third proportional to 18,781.13 and 29,248.31 is: 45,549.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781.13 : 29,248.31 = 29,248.31 : x
  2. Step 2: Convert to fraction form
    18,781.13/29,248.31 = 29,248.31/x
  3. Step 3: Cross multiply
    18,781.13x = 29,248.31 × 29,248.31
  4. Step 4: Simplify right side
    18,781.13x = 855,463,784.10
  5. Step 5: Solve for x
    x = 855,463,784.10/18,781.13
  6. Step 6: Final answer
    x = 45,549.12

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.