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Finding the Third Proportional to 38,875.13 and 81,667.13

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Solution

The third proportional to 38,875.13 and 81,667.13 is: 171,562.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,875.13 : 81,667.13 = 81,667.13 : x
  2. Step 2: Convert to fraction form
    38,875.13/81,667.13 = 81,667.13/x
  3. Step 3: Cross multiply
    38,875.13x = 81,667.13 × 81,667.13
  4. Step 4: Simplify right side
    38,875.13x = 6,669,519,305.77
  5. Step 5: Solve for x
    x = 6,669,519,305.77/38,875.13
  6. Step 6: Final answer
    x = 171,562.65

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.