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Finding the Third Proportional to 38,824 and 91,712

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Solution

The third proportional to 38,824 and 91,712 is: 216,646.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,824 : 91,712 = 91,712 : x
  2. Step 2: Convert to fraction form
    38,824/91,712 = 91,712/x
  3. Step 3: Cross multiply
    38,824x = 91,712 × 91,712
  4. Step 4: Simplify right side
    38,824x = 8,411,090,944
  5. Step 5: Solve for x
    x = 8,411,090,944/38,824
  6. Step 6: Final answer
    x = 216,646.69

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.