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Finding the Third Proportional to 20,289 and 32,307

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Solution

The third proportional to 20,289 and 32,307 is: 51,443.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289 : 32,307 = 32,307 : x
  2. Step 2: Convert to fraction form
    20,289/32,307 = 32,307/x
  3. Step 3: Cross multiply
    20,289x = 32,307 × 32,307
  4. Step 4: Simplify right side
    20,289x = 1,043,742,249
  5. Step 5: Solve for x
    x = 1,043,742,249/20,289
  6. Step 6: Final answer
    x = 51,443.75

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.