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Finding the Third Proportional to 2,968 and 6,428

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Solution

The third proportional to 2,968 and 6,428 is: 13,921.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,968 : 6,428 = 6,428 : x
  2. Step 2: Convert to fraction form
    2,968/6,428 = 6,428/x
  3. Step 3: Cross multiply
    2,968x = 6,428 × 6,428
  4. Step 4: Simplify right side
    2,968x = 41,319,184
  5. Step 5: Solve for x
    x = 41,319,184/2,968
  6. Step 6: Final answer
    x = 13,921.56

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.