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Finding the Third Proportional to 9,826 and 15,816

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Solution

The third proportional to 9,826 and 15,816 is: 25,457.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,826 : 15,816 = 15,816 : x
  2. Step 2: Convert to fraction form
    9,826/15,816 = 15,816/x
  3. Step 3: Cross multiply
    9,826x = 15,816 × 15,816
  4. Step 4: Simplify right side
    9,826x = 250,145,856
  5. Step 5: Solve for x
    x = 250,145,856/9,826
  6. Step 6: Final answer
    x = 25,457.55

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.