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Finding the Third Proportional to 43,215 and 93,810

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Solution

The third proportional to 43,215 and 93,810 is: 203,640.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,215 : 93,810 = 93,810 : x
  2. Step 2: Convert to fraction form
    43,215/93,810 = 93,810/x
  3. Step 3: Cross multiply
    43,215x = 93,810 × 93,810
  4. Step 4: Simplify right side
    43,215x = 8,800,316,100
  5. Step 5: Solve for x
    x = 8,800,316,100/43,215
  6. Step 6: Final answer
    x = 203,640.31

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.