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Finding the Third Proportional to 64,912 and 101,418

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Solution

The third proportional to 64,912 and 101,418 is: 158,454.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,912 : 101,418 = 101,418 : x
  2. Step 2: Convert to fraction form
    64,912/101,418 = 101,418/x
  3. Step 3: Cross multiply
    64,912x = 101,418 × 101,418
  4. Step 4: Simplify right side
    64,912x = 10,285,610,724
  5. Step 5: Solve for x
    x = 10,285,610,724/64,912
  6. Step 6: Final answer
    x = 158,454.69

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.