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Finding the Third Proportional to 3,891 and 6,079.50

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Solution

The third proportional to 3,891 and 6,079.50 is: 9,498.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891 : 6,079.50 = 6,079.50 : x
  2. Step 2: Convert to fraction form
    3,891/6,079.50 = 6,079.50/x
  3. Step 3: Cross multiply
    3,891x = 6,079.50 × 6,079.50
  4. Step 4: Simplify right side
    3,891x = 36,960,320.25
  5. Step 5: Solve for x
    x = 36,960,320.25/3,891
  6. Step 6: Final answer
    x = 9,498.93

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.