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Finding the Third Proportional to 891,939 and 1,857,747

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Solution

The third proportional to 891,939 and 1,857,747 is: 3,869,349.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,939 : 1,857,747 = 1,857,747 : x
  2. Step 2: Convert to fraction form
    891,939/1,857,747 = 1,857,747/x
  3. Step 3: Cross multiply
    891,939x = 1,857,747 × 1,857,747
  4. Step 4: Simplify right side
    891,939x = 3,451,223,916,009
  5. Step 5: Solve for x
    x = 3,451,223,916,009/891,939
  6. Step 6: Final answer
    x = 3,869,349.72

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.