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Finding the Third Proportional to 5,411.25 and 9,717.75

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Solution

The third proportional to 5,411.25 and 9,717.75 is: 17,451.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.25 : 9,717.75 = 9,717.75 : x
  2. Step 2: Convert to fraction form
    5,411.25/9,717.75 = 9,717.75/x
  3. Step 3: Cross multiply
    5,411.25x = 9,717.75 × 9,717.75
  4. Step 4: Simplify right side
    5,411.25x = 94,434,665.06
  5. Step 5: Solve for x
    x = 94,434,665.06/5,411.25
  6. Step 6: Final answer
    x = 17,451.54

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Why These Related Problems?

These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.