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Finding the Third Proportional to 64,332 and 84,786

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Solution

The third proportional to 64,332 and 84,786 is: 111,743.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,332 : 84,786 = 84,786 : x
  2. Step 2: Convert to fraction form
    64,332/84,786 = 84,786/x
  3. Step 3: Cross multiply
    64,332x = 84,786 × 84,786
  4. Step 4: Simplify right side
    64,332x = 7,188,665,796
  5. Step 5: Solve for x
    x = 7,188,665,796/64,332
  6. Step 6: Final answer
    x = 111,743.24

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.