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Finding the Third Proportional to 7,891.50 and 14,685

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Solution

The third proportional to 7,891.50 and 14,685 is: 27,326.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891.50 : 14,685 = 14,685 : x
  2. Step 2: Convert to fraction form
    7,891.50/14,685 = 14,685/x
  3. Step 3: Cross multiply
    7,891.50x = 14,685 × 14,685
  4. Step 4: Simplify right side
    7,891.50x = 215,649,225
  5. Step 5: Solve for x
    x = 215,649,225/7,891.50
  6. Step 6: Final answer
    x = 27,326.77

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.