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Finding the Third Proportional to 20,101.50 and 30,357

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Solution

The third proportional to 20,101.50 and 30,357 is: 45,844.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.50 : 30,357 = 30,357 : x
  2. Step 2: Convert to fraction form
    20,101.50/30,357 = 30,357/x
  3. Step 3: Cross multiply
    20,101.50x = 30,357 × 30,357
  4. Step 4: Simplify right side
    20,101.50x = 921,547,449
  5. Step 5: Solve for x
    x = 921,547,449/20,101.50
  6. Step 6: Final answer
    x = 45,844.71

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.