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Finding the Third Proportional to 18,545.50 and 40,074

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Solution

The third proportional to 18,545.50 and 40,074 is: 86,593.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,545.50 : 40,074 = 40,074 : x
  2. Step 2: Convert to fraction form
    18,545.50/40,074 = 40,074/x
  3. Step 3: Cross multiply
    18,545.50x = 40,074 × 40,074
  4. Step 4: Simplify right side
    18,545.50x = 1,605,925,476
  5. Step 5: Solve for x
    x = 1,605,925,476/18,545.50
  6. Step 6: Final answer
    x = 86,593.81

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.