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Finding the Third Proportional to 5,909 and 9,672

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Solution

The third proportional to 5,909 and 9,672 is: 15,831.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,909 : 9,672 = 9,672 : x
  2. Step 2: Convert to fraction form
    5,909/9,672 = 9,672/x
  3. Step 3: Cross multiply
    5,909x = 9,672 × 9,672
  4. Step 4: Simplify right side
    5,909x = 93,547,584
  5. Step 5: Solve for x
    x = 93,547,584/5,909
  6. Step 6: Final answer
    x = 15,831.37

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.