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Finding the Third Proportional to 3,074.91 and 7,218.98

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Solution

The third proportional to 3,074.91 and 7,218.98 is: 16,948.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.91 : 7,218.98 = 7,218.98 : x
  2. Step 2: Convert to fraction form
    3,074.91/7,218.98 = 7,218.98/x
  3. Step 3: Cross multiply
    3,074.91x = 7,218.98 × 7,218.98
  4. Step 4: Simplify right side
    3,074.91x = 52,113,735.41
  5. Step 5: Solve for x
    x = 52,113,735.41/3,074.91
  6. Step 6: Final answer
    x = 16,948.07

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.