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Finding the Third Proportional to 67,348 and 99,719

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Solution

The third proportional to 67,348 and 99,719 is: 147,649.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,348 : 99,719 = 99,719 : x
  2. Step 2: Convert to fraction form
    67,348/99,719 = 99,719/x
  3. Step 3: Cross multiply
    67,348x = 99,719 × 99,719
  4. Step 4: Simplify right side
    67,348x = 9,943,878,961
  5. Step 5: Solve for x
    x = 9,943,878,961/67,348
  6. Step 6: Final answer
    x = 147,649.21

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.