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Finding the Third Proportional to 32,824 and 78,772

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Solution

The third proportional to 32,824 and 78,772 is: 189,039.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,824 : 78,772 = 78,772 : x
  2. Step 2: Convert to fraction form
    32,824/78,772 = 78,772/x
  3. Step 3: Cross multiply
    32,824x = 78,772 × 78,772
  4. Step 4: Simplify right side
    32,824x = 6,205,027,984
  5. Step 5: Solve for x
    x = 6,205,027,984/32,824
  6. Step 6: Final answer
    x = 189,039.36

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Why These Related Problems?

These problems maintain the same ratio (2.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.