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Finding the Third Proportional to 7,717.15 and 16,880.91

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Solution

The third proportional to 7,717.15 and 16,880.91 is: 36,926.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.15 : 16,880.91 = 16,880.91 : x
  2. Step 2: Convert to fraction form
    7,717.15/16,880.91 = 16,880.91/x
  3. Step 3: Cross multiply
    7,717.15x = 16,880.91 × 16,880.91
  4. Step 4: Simplify right side
    7,717.15x = 284,964,995.82
  5. Step 5: Solve for x
    x = 284,964,995.82/7,717.15
  6. Step 6: Final answer
    x = 36,926.20

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.