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Finding the Third Proportional to 12,020 and 18,598

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Solution

The third proportional to 12,020 and 18,598 is: 28,775.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020 : 18,598 = 18,598 : x
  2. Step 2: Convert to fraction form
    12,020/18,598 = 18,598/x
  3. Step 3: Cross multiply
    12,020x = 18,598 × 18,598
  4. Step 4: Simplify right side
    12,020x = 345,885,604
  5. Step 5: Solve for x
    x = 345,885,604/12,020
  6. Step 6: Final answer
    x = 28,775.84

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.