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Finding the Third Proportional to 987,530 and 2,115,026

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Solution

The third proportional to 987,530 and 2,115,026 is: 4,529,821.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,530 : 2,115,026 = 2,115,026 : x
  2. Step 2: Convert to fraction form
    987,530/2,115,026 = 2,115,026/x
  3. Step 3: Cross multiply
    987,530x = 2,115,026 × 2,115,026
  4. Step 4: Simplify right side
    987,530x = 4,473,334,980,676
  5. Step 5: Solve for x
    x = 4,473,334,980,676/987,530
  6. Step 6: Final answer
    x = 4,529,821.86

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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.