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Finding the Third Proportional to 1,415.16 and 3,110.44

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Solution

The third proportional to 1,415.16 and 3,110.44 is: 6,836.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415.16 : 3,110.44 = 3,110.44 : x
  2. Step 2: Convert to fraction form
    1,415.16/3,110.44 = 3,110.44/x
  3. Step 3: Cross multiply
    1,415.16x = 3,110.44 × 3,110.44
  4. Step 4: Simplify right side
    1,415.16x = 9,674,821.44
  5. Step 5: Solve for x
    x = 9,674,821.44/1,415.16
  6. Step 6: Final answer
    x = 6,836.57

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.