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Finding the Third Proportional to 72,824 and 97,879

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Solution

The third proportional to 72,824 and 97,879 is: 131,554.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,824 : 97,879 = 97,879 : x
  2. Step 2: Convert to fraction form
    72,824/97,879 = 97,879/x
  3. Step 3: Cross multiply
    72,824x = 97,879 × 97,879
  4. Step 4: Simplify right side
    72,824x = 9,580,298,641
  5. Step 5: Solve for x
    x = 9,580,298,641/72,824
  6. Step 6: Final answer
    x = 131,554.14

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.