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Finding the Third Proportional to 7,474 and 15,830

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Solution

The third proportional to 7,474 and 15,830 is: 33,528.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474 : 15,830 = 15,830 : x
  2. Step 2: Convert to fraction form
    7,474/15,830 = 15,830/x
  3. Step 3: Cross multiply
    7,474x = 15,830 × 15,830
  4. Step 4: Simplify right side
    7,474x = 250,588,900
  5. Step 5: Solve for x
    x = 250,588,900/7,474
  6. Step 6: Final answer
    x = 33,528.08

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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.