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Finding the Third Proportional to 1,405.67 and 3,254.16

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Solution

The third proportional to 1,405.67 and 3,254.16 is: 7,533.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405.67 : 3,254.16 = 3,254.16 : x
  2. Step 2: Convert to fraction form
    1,405.67/3,254.16 = 3,254.16/x
  3. Step 3: Cross multiply
    1,405.67x = 3,254.16 × 3,254.16
  4. Step 4: Simplify right side
    1,405.67x = 10,589,551.97
  5. Step 5: Solve for x
    x = 10,589,551.97/1,405.67
  6. Step 6: Final answer
    x = 7,533.43

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.