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Finding the Third Proportional to 4,151.25 and 8,980.88

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Solution

The third proportional to 4,151.25 and 8,980.88 is: 19,429.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,151.25 : 8,980.88 = 8,980.88 : x
  2. Step 2: Convert to fraction form
    4,151.25/8,980.88 = 8,980.88/x
  3. Step 3: Cross multiply
    4,151.25x = 8,980.88 × 8,980.88
  4. Step 4: Simplify right side
    4,151.25x = 80,656,115.77
  5. Step 5: Solve for x
    x = 80,656,115.77/4,151.25
  6. Step 6: Final answer
    x = 19,429.36

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.