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Finding the Third Proportional to 56,918 and 82,230

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Solution

The third proportional to 56,918 and 82,230 is: 118,798.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,918 : 82,230 = 82,230 : x
  2. Step 2: Convert to fraction form
    56,918/82,230 = 82,230/x
  3. Step 3: Cross multiply
    56,918x = 82,230 × 82,230
  4. Step 4: Simplify right side
    56,918x = 6,761,772,900
  5. Step 5: Solve for x
    x = 6,761,772,900/56,918
  6. Step 6: Final answer
    x = 118,798.50

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.