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Finding the Third Proportional to 3,278.90 and 4,943.18

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Solution

The third proportional to 3,278.90 and 4,943.18 is: 7,452.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.90 : 4,943.18 = 4,943.18 : x
  2. Step 2: Convert to fraction form
    3,278.90/4,943.18 = 4,943.18/x
  3. Step 3: Cross multiply
    3,278.90x = 4,943.18 × 4,943.18
  4. Step 4: Simplify right side
    3,278.90x = 24,434,981.98
  5. Step 5: Solve for x
    x = 24,434,981.98/3,278.90
  6. Step 6: Final answer
    x = 7,452.19

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.