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Finding the Third Proportional to 5,288 and 7,399

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Solution

The third proportional to 5,288 and 7,399 is: 10,352.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,288 : 7,399 = 7,399 : x
  2. Step 2: Convert to fraction form
    5,288/7,399 = 7,399/x
  3. Step 3: Cross multiply
    5,288x = 7,399 × 7,399
  4. Step 4: Simplify right side
    5,288x = 54,745,201
  5. Step 5: Solve for x
    x = 54,745,201/5,288
  6. Step 6: Final answer
    x = 10,352.72

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.