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Finding the Third Proportional to 4,716 and 7,309

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Solution

The third proportional to 4,716 and 7,309 is: 11,327.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,716 : 7,309 = 7,309 : x
  2. Step 2: Convert to fraction form
    4,716/7,309 = 7,309/x
  3. Step 3: Cross multiply
    4,716x = 7,309 × 7,309
  4. Step 4: Simplify right side
    4,716x = 53,421,481
  5. Step 5: Solve for x
    x = 53,421,481/4,716
  6. Step 6: Final answer
    x = 11,327.71

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.