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Finding the Third Proportional to 35,331 and 75,780

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Solution

The third proportional to 35,331 and 75,780 is: 162,537.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,331 : 75,780 = 75,780 : x
  2. Step 2: Convert to fraction form
    35,331/75,780 = 75,780/x
  3. Step 3: Cross multiply
    35,331x = 75,780 × 75,780
  4. Step 4: Simplify right side
    35,331x = 5,742,608,400
  5. Step 5: Solve for x
    x = 5,742,608,400/35,331
  6. Step 6: Final answer
    x = 162,537.39

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.