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Finding the Third Proportional to 46,690 and 100,786

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Solution

The third proportional to 46,690 and 100,786 is: 217,558.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,690 : 100,786 = 100,786 : x
  2. Step 2: Convert to fraction form
    46,690/100,786 = 100,786/x
  3. Step 3: Cross multiply
    46,690x = 100,786 × 100,786
  4. Step 4: Simplify right side
    46,690x = 10,157,817,796
  5. Step 5: Solve for x
    x = 10,157,817,796/46,690
  6. Step 6: Final answer
    x = 217,558.74

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.