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Finding the Third Proportional to 32,430 and 69,918

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Solution

The third proportional to 32,430 and 69,918 is: 150,740.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,430 : 69,918 = 69,918 : x
  2. Step 2: Convert to fraction form
    32,430/69,918 = 69,918/x
  3. Step 3: Cross multiply
    32,430x = 69,918 × 69,918
  4. Step 4: Simplify right side
    32,430x = 4,888,526,724
  5. Step 5: Solve for x
    x = 4,888,526,724/32,430
  6. Step 6: Final answer
    x = 150,740.88

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.