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Finding the Third Proportional to 20,202 and 27,585

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Solution

The third proportional to 20,202 and 27,585 is: 37,666.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,202 : 27,585 = 27,585 : x
  2. Step 2: Convert to fraction form
    20,202/27,585 = 27,585/x
  3. Step 3: Cross multiply
    20,202x = 27,585 × 27,585
  4. Step 4: Simplify right side
    20,202x = 760,932,225
  5. Step 5: Solve for x
    x = 760,932,225/20,202
  6. Step 6: Final answer
    x = 37,666.18

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.