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Finding the Third Proportional to 29,690 and 61,829

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Solution

The third proportional to 29,690 and 61,829 is: 128,758.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,690 : 61,829 = 61,829 : x
  2. Step 2: Convert to fraction form
    29,690/61,829 = 61,829/x
  3. Step 3: Cross multiply
    29,690x = 61,829 × 61,829
  4. Step 4: Simplify right side
    29,690x = 3,822,825,241
  5. Step 5: Solve for x
    x = 3,822,825,241/29,690
  6. Step 6: Final answer
    x = 128,758.01

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.