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Finding the Third Proportional to 21,655 and 46,658

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Solution

The third proportional to 21,655 and 46,658 is: 100,529.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655 : 46,658 = 46,658 : x
  2. Step 2: Convert to fraction form
    21,655/46,658 = 46,658/x
  3. Step 3: Cross multiply
    21,655x = 46,658 × 46,658
  4. Step 4: Simplify right side
    21,655x = 2,176,968,964
  5. Step 5: Solve for x
    x = 2,176,968,964/21,655
  6. Step 6: Final answer
    x = 100,529.62

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.