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Finding the Third Proportional to 7,990.84 and 16,807.18

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Solution

The third proportional to 7,990.84 and 16,807.18 is: 35,350.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.84 : 16,807.18 = 16,807.18 : x
  2. Step 2: Convert to fraction form
    7,990.84/16,807.18 = 16,807.18/x
  3. Step 3: Cross multiply
    7,990.84x = 16,807.18 × 16,807.18
  4. Step 4: Simplify right side
    7,990.84x = 282,481,420.35
  5. Step 5: Solve for x
    x = 282,481,420.35/7,990.84
  6. Step 6: Final answer
    x = 35,350.65

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.