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Finding the Third Proportional to 987,516 and 2,114,997

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Solution

The third proportional to 987,516 and 2,114,997 is: 4,529,761.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,516 : 2,114,997 = 2,114,997 : x
  2. Step 2: Convert to fraction form
    987,516/2,114,997 = 2,114,997/x
  3. Step 3: Cross multiply
    987,516x = 2,114,997 × 2,114,997
  4. Step 4: Simplify right side
    987,516x = 4,473,212,310,009
  5. Step 5: Solve for x
    x = 4,473,212,310,009/987,516
  6. Step 6: Final answer
    x = 4,529,761.86

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.