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Finding the Third Proportional to 891,871 and 1,960,861

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Solution

The third proportional to 891,871 and 1,960,861 is: 4,311,134.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,871 : 1,960,861 = 1,960,861 : x
  2. Step 2: Convert to fraction form
    891,871/1,960,861 = 1,960,861/x
  3. Step 3: Cross multiply
    891,871x = 1,960,861 × 1,960,861
  4. Step 4: Simplify right side
    891,871x = 3,844,975,861,321
  5. Step 5: Solve for x
    x = 3,844,975,861,321/891,871
  6. Step 6: Final answer
    x = 4,311,134.53

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.