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Finding the Third Proportional to 7,614 and 8,478

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Solution

The third proportional to 7,614 and 8,478 is: 9,440.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,614 : 8,478 = 8,478 : x
  2. Step 2: Convert to fraction form
    7,614/8,478 = 8,478/x
  3. Step 3: Cross multiply
    7,614x = 8,478 × 8,478
  4. Step 4: Simplify right side
    7,614x = 71,876,484
  5. Step 5: Solve for x
    x = 71,876,484/7,614
  6. Step 6: Final answer
    x = 9,440.04

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These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.