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Finding the Third Proportional to 7,278 and 15,941

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Solution

The third proportional to 7,278 and 15,941 is: 34,915.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278 : 15,941 = 15,941 : x
  2. Step 2: Convert to fraction form
    7,278/15,941 = 15,941/x
  3. Step 3: Cross multiply
    7,278x = 15,941 × 15,941
  4. Step 4: Simplify right side
    7,278x = 254,115,481
  5. Step 5: Solve for x
    x = 254,115,481/7,278
  6. Step 6: Final answer
    x = 34,915.56

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.