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Finding the Third Proportional to 891,220 and 1,855,880

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Solution

The third proportional to 891,220 and 1,855,880 is: 3,864,691.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,220 : 1,855,880 = 1,855,880 : x
  2. Step 2: Convert to fraction form
    891,220/1,855,880 = 1,855,880/x
  3. Step 3: Cross multiply
    891,220x = 1,855,880 × 1,855,880
  4. Step 4: Simplify right side
    891,220x = 3,444,290,574,400
  5. Step 5: Solve for x
    x = 3,444,290,574,400/891,220
  6. Step 6: Final answer
    x = 3,864,691.74

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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.