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Finding the Third Proportional to 7,380 and 15,666

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Solution

The third proportional to 7,380 and 15,666 is: 33,255.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380 : 15,666 = 15,666 : x
  2. Step 2: Convert to fraction form
    7,380/15,666 = 15,666/x
  3. Step 3: Cross multiply
    7,380x = 15,666 × 15,666
  4. Step 4: Simplify right side
    7,380x = 245,423,556
  5. Step 5: Solve for x
    x = 245,423,556/7,380
  6. Step 6: Final answer
    x = 33,255.22

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.