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Finding the Third Proportional to 6,748 and 7,960

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Solution

The third proportional to 6,748 and 7,960 is: 9,389.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,748 : 7,960 = 7,960 : x
  2. Step 2: Convert to fraction form
    6,748/7,960 = 7,960/x
  3. Step 3: Cross multiply
    6,748x = 7,960 × 7,960
  4. Step 4: Simplify right side
    6,748x = 63,361,600
  5. Step 5: Solve for x
    x = 63,361,600/6,748
  6. Step 6: Final answer
    x = 9,389.69

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.