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Finding the Third Proportional to 19,719 and 40,358.25

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Solution

The third proportional to 19,719 and 40,358.25 is: 82,599.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,719 : 40,358.25 = 40,358.25 : x
  2. Step 2: Convert to fraction form
    19,719/40,358.25 = 40,358.25/x
  3. Step 3: Cross multiply
    19,719x = 40,358.25 × 40,358.25
  4. Step 4: Simplify right side
    19,719x = 1,628,788,343.06
  5. Step 5: Solve for x
    x = 1,628,788,343.06/19,719
  6. Step 6: Final answer
    x = 82,599.95

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.