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Finding the Third Proportional to 21,516 and 46,328

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Solution

The third proportional to 21,516 and 46,328 is: 99,752.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,516 : 46,328 = 46,328 : x
  2. Step 2: Convert to fraction form
    21,516/46,328 = 46,328/x
  3. Step 3: Cross multiply
    21,516x = 46,328 × 46,328
  4. Step 4: Simplify right side
    21,516x = 2,146,283,584
  5. Step 5: Solve for x
    x = 2,146,283,584/21,516
  6. Step 6: Final answer
    x = 99,752.91

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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.