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Finding the Third Proportional to 7,608 and 12,188

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Solution

The third proportional to 7,608 and 12,188 is: 19,525.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,608 : 12,188 = 12,188 : x
  2. Step 2: Convert to fraction form
    7,608/12,188 = 12,188/x
  3. Step 3: Cross multiply
    7,608x = 12,188 × 12,188
  4. Step 4: Simplify right side
    7,608x = 148,547,344
  5. Step 5: Solve for x
    x = 148,547,344/7,608
  6. Step 6: Final answer
    x = 19,525.15

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.