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Finding the Third Proportional to 4,391 and 9,275

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Solution

The third proportional to 4,391 and 9,275 is: 19,591.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,391 : 9,275 = 9,275 : x
  2. Step 2: Convert to fraction form
    4,391/9,275 = 9,275/x
  3. Step 3: Cross multiply
    4,391x = 9,275 × 9,275
  4. Step 4: Simplify right side
    4,391x = 86,025,625
  5. Step 5: Solve for x
    x = 86,025,625/4,391
  6. Step 6: Final answer
    x = 19,591.35

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.