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Finding the Third Proportional to 1,599.75 and 2,431.90

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Solution

The third proportional to 1,599.75 and 2,431.90 is: 3,696.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,599.75 : 2,431.90 = 2,431.90 : x
  2. Step 2: Convert to fraction form
    1,599.75/2,431.90 = 2,431.90/x
  3. Step 3: Cross multiply
    1,599.75x = 2,431.90 × 2,431.90
  4. Step 4: Simplify right side
    1,599.75x = 5,914,130.01
  5. Step 5: Solve for x
    x = 5,914,130.01/1,599.75
  6. Step 6: Final answer
    x = 3,696.91

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.