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Finding the Third Proportional to 4,270 and 7,508

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Solution

The third proportional to 4,270 and 7,508 is: 13,201.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,270 : 7,508 = 7,508 : x
  2. Step 2: Convert to fraction form
    4,270/7,508 = 7,508/x
  3. Step 3: Cross multiply
    4,270x = 7,508 × 7,508
  4. Step 4: Simplify right side
    4,270x = 56,370,064
  5. Step 5: Solve for x
    x = 56,370,064/4,270
  6. Step 6: Final answer
    x = 13,201.42

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.