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Finding the Third Proportional to 40,768 and 84,154

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Solution

The third proportional to 40,768 and 84,154 is: 173,712.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,768 : 84,154 = 84,154 : x
  2. Step 2: Convert to fraction form
    40,768/84,154 = 84,154/x
  3. Step 3: Cross multiply
    40,768x = 84,154 × 84,154
  4. Step 4: Simplify right side
    40,768x = 7,081,895,716
  5. Step 5: Solve for x
    x = 7,081,895,716/40,768
  6. Step 6: Final answer
    x = 173,712.12

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.