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Finding the Third Proportional to 19,080.75 and 38,681.25

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Solution

The third proportional to 19,080.75 and 38,681.25 is: 78,416.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,080.75 : 38,681.25 = 38,681.25 : x
  2. Step 2: Convert to fraction form
    19,080.75/38,681.25 = 38,681.25/x
  3. Step 3: Cross multiply
    19,080.75x = 38,681.25 × 38,681.25
  4. Step 4: Simplify right side
    19,080.75x = 1,496,239,101.56
  5. Step 5: Solve for x
    x = 1,496,239,101.56/19,080.75
  6. Step 6: Final answer
    x = 78,416.16

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.