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Finding the Third Proportional to 1,777.50 and 3,816

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Solution

The third proportional to 1,777.50 and 3,816 is: 8,192.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.50 : 3,816 = 3,816 : x
  2. Step 2: Convert to fraction form
    1,777.50/3,816 = 3,816/x
  3. Step 3: Cross multiply
    1,777.50x = 3,816 × 3,816
  4. Step 4: Simplify right side
    1,777.50x = 14,561,856
  5. Step 5: Solve for x
    x = 14,561,856/1,777.50
  6. Step 6: Final answer
    x = 8,192.32

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.