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Finding the Third Proportional to 6,987 and 9,844.50

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Solution

The third proportional to 6,987 and 9,844.50 is: 13,870.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987 : 9,844.50 = 9,844.50 : x
  2. Step 2: Convert to fraction form
    6,987/9,844.50 = 9,844.50/x
  3. Step 3: Cross multiply
    6,987x = 9,844.50 × 9,844.50
  4. Step 4: Simplify right side
    6,987x = 96,914,180.25
  5. Step 5: Solve for x
    x = 96,914,180.25/6,987
  6. Step 6: Final answer
    x = 13,870.64

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.