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Finding the Third Proportional to 2,431.90 and 3,474.14

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Solution

The third proportional to 2,431.90 and 3,474.14 is: 4,963.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.90 : 3,474.14 = 3,474.14 : x
  2. Step 2: Convert to fraction form
    2,431.90/3,474.14 = 3,474.14/x
  3. Step 3: Cross multiply
    2,431.90x = 3,474.14 × 3,474.14
  4. Step 4: Simplify right side
    2,431.90x = 12,069,653.08
  5. Step 5: Solve for x
    x = 12,069,653.08/2,431.90
  6. Step 6: Final answer
    x = 4,963.06

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.