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Finding the Third Proportional to 66,929 and 103,634

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Solution

The third proportional to 66,929 and 103,634 is: 160,468.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,929 : 103,634 = 103,634 : x
  2. Step 2: Convert to fraction form
    66,929/103,634 = 103,634/x
  3. Step 3: Cross multiply
    66,929x = 103,634 × 103,634
  4. Step 4: Simplify right side
    66,929x = 10,740,005,956
  5. Step 5: Solve for x
    x = 10,740,005,956/66,929
  6. Step 6: Final answer
    x = 160,468.65

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.