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Finding the Third Proportional to 3,555.19 and 7,730.84

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Solution

The third proportional to 3,555.19 and 7,730.84 is: 16,810.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.19 : 7,730.84 = 7,730.84 : x
  2. Step 2: Convert to fraction form
    3,555.19/7,730.84 = 7,730.84/x
  3. Step 3: Cross multiply
    3,555.19x = 7,730.84 × 7,730.84
  4. Step 4: Simplify right side
    3,555.19x = 59,765,945.09
  5. Step 5: Solve for x
    x = 59,765,945.09/3,555.19
  6. Step 6: Final answer
    x = 16,810.91

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.