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Finding the Third Proportional to 28,031 and 61,588

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Solution

The third proportional to 28,031 and 61,588 is: 135,317.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031 : 61,588 = 61,588 : x
  2. Step 2: Convert to fraction form
    28,031/61,588 = 61,588/x
  3. Step 3: Cross multiply
    28,031x = 61,588 × 61,588
  4. Step 4: Simplify right side
    28,031x = 3,793,081,744
  5. Step 5: Solve for x
    x = 3,793,081,744/28,031
  6. Step 6: Final answer
    x = 135,317.39

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.